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Best Choice JIANGWEIF 
PVC Bulkhead Water Tank Connector Adapter, 4Pcs Bulkhead Fitting Water Tank Connector PVC Threaded Fitting Adapter,Plast Package Content: You will receive 4 pieces of 1/2 inch bulkhead fitting connectors and 4 rubber gaskets, size 2.2x1.85x1Snokay 
SNOKAY 2 Pack Rain Barrel Spigot Kit - PVC Garden Diverter Kit with Bulkhead Fitting, Hose Faucet Adapter, and Thread Se Relax Irrigation And Garden Life: The PVC Rain Barrel Kit Makes It Quick And Easy To Pour Your Rain Barrel Water Into APenitue 
4pcs Bulkhead Fitting with Plugs, PVC Garden Hose Bulkhead Fitting with 3/4" Male GHT and 1/2" Female NPT Thread for Wat Product Content: You will receive 4 pieces of garden hose bulkhead fittings with 4 corresponding plugs, 4 hexagonal threPEUTIER 
10 Packs 3/8" Hose Barb Thru-Bulk Bulkhead Fitting Plastic Hose Barb Fittings, Pipe Connector Fittings for Aquarium Fish Package Content: You will receive 10 sets of thru-bulk bulkhead plastic hose barb fittings, each set includes a thru-bulBest Value PEUTIER 
10 Packs 1/8" Hose Barb Thru-Bulk Bulkhead Fitting Plastic Hose Barb Fittings, Pipe Connector Fittings for Aquarium Fish Package Content: You will receive 10 sets of thru-bulk bulkhead plastic hose barb fittings, each set includes a thru-bulVGOL 
VGOL 5 PCS 1/2inch Hose Barb Thru Bulk Bulkhead Fitting Plastic Hex Straight Union Adapter Barb Pipe Connectors for Wate ?Compatibility?: Suitable for 1/2-inch inner diameter hoses.PEUTIER 
10 Packs 3/32" Hose Barb Thru-Bulk Bulkhead Fitting Plastic Hose Barb Fittings, Pipe Connector Fittings for Aquarium Fis Package Content: You will receive 10 sets of thru-bulk bulkhead plastic hose barb fittings, each set includes a thru-bulBriny River Briny River 4 Set 10-M14-10 10mm Dual Ended Plastic Hose Barb Bulkhead Fitting with Gasket for Inner Diameter 10mm Hose Specifications:10-M14-10: with M14 nut and gasket. suitable for inner diameter 10mm hose. Measurement size error 0.3mm.Suswillhit 2 Pack Rain Barrel Spigot Kit - Suswillhit Water Barrel PVC Garden Diverter Kit with Bulkhead Fitting Hose Faucet Adapte Fit All Standard Faucet & Garden Hose - 3/4 inches PVC spigot kit can quickly connect to standard faucet or garden hoseAuto-plaza 2 Pcs AN6 Bulkhead Adapter Fitting Aluminum Anodized for Fuel line to Fuel Cell Tank Pump Connection Set Made of aluminium alloy material. Black anodized for great appearance and anti-corrosion, superior thread strength.Briny River Briny River 4pcs 10mm Motorsport Bulkhead Barb Fitting Brass with Silicone Washer for Fuel Lines Brass Material: Made from durable brass for corrosion resistance and long-lasting performance in motorsport fuel systemsTianTianUp 1/2" Brass Hose Barb Thru-Bulk Bulkhead Fitting,Straight Hex Union Fitting for Air Water Fuel 2 Pcs The two ends of the product are thick hexagons, forming a partition function. Metal washers are available for larger opeBriny River Briny River 4 Set 6-M8-6 6mm Dual Ended Plastic Hose Barb Bulkhead Fitting with Gasket for Inner Diameter 6mm Hose Hex B Specifications:6-M8-6: with M8 nut and gasket. Suitable for inner diameter 6mm hose . Measurement size error 0.3mm.Generic Bulkhead Fitting with Plug - Rain Barrels Connector Kit,Three Sizes Rust-Proof Garden Faucet Kit for Rain Barrels, Tanks ⇄Not Easy to Crack: This rain barrel bulkhead fitting kit is made of PVC material that can resist rust and last for a loYINETTECH YINETTECH 4x 6MM Brass Bulkhead Dual Fitting Barb Pipe Hose Tube Connector Adapter for Fuel Water Air Boat Plumbing Specifications: The connector is compatible with 6mm hoses, with a total length of 43mm.QuQuyi Ququyi 1 Inch PVC Bulkhead Water Tank Connector Adapter Fitting with Plugs Thru-Bulk Pipe Fitting for Rain Barrels, Aqua Size & Material: 1 inch and qualified PVC,seal gaskets is 6mm thick;please note locking nut is reversed threaded.TopHomer TopHomer 1 Inch PVC Bulkhead Fitting, 2 Pcs Bulkhead Water Tank Connector Adapter Fitting with Plug for Rain Barrel, Dra [Material]: The bulkhead fitting is made of high quality PVC material, which is durable, corrosion-resistant, not easy tNikovoke 2Pcs Brass Bulkhead Water Tank Connector, 1" BSP Male - 3/4" BSP Female Theaded Fitting with 2 Rubber Rings Brass Bulkhead Water Tank Connector, 1" BSP Male - 3/4" BSP Female Theaded Fitting with 2 Rubber Rings for Rain Barrels,Briny River Briny River 4pcs 6mm Motorsport Bulkhead Barb Fitting Brass with Silicone Washer for Fuel Lines Brass Material: Made from durable brass for corrosion resistance and long-lasting performance in motorsport fuel systemsPomya Pomya Brass Ball Valve Quarter Turn Water Tank Spigot, Rain Barrel Valve with Bulkhead Fitting, 1/2in Female 3/4in Male Easy Installation: The rain water Drum ball valve has a simple structure and standard size, making it convenient to instGeneric 2 Pack Rain Barrel Spigot Kit Water Barrel PVC Garden Diverter Kit with Bulkhead Fitting Hose Faucet Adapter and Thread Fit All Standard Faucet & Garden Hose - 3/4 inches PVC spigot kit can quickly connect to standard faucet or garden hoseLuojinLuoda LuojinLuoda Brass Bulkhead Water Tank Connector - 25mm（1 Inch） BSP Male to 20mm（3/4 Inch） BSP Female Threaded Fitting wi 【Sealed Tank Penetration Fitting】This brass bulkhead connector creates a reliable, leak-proof water passage through theRierdge Rierdge 6 Pcs 3/4 inch PVC Bulkhead Fitting, Water Tank Connector with Plugs for Rain Barrels, Aquariums - White 【What U Get】 Package contains 6 x 3/4 inch bulkhead adapter , 6 x 3/4 inch plugs, meet your needs in quantity. Versatilewalkinginrain 10-Pack Garden Hose Bulkhead Fittings, 1/2" Female NPT, 3/4" Male GHT (garden Hose Thread), Bulkhead Tank Fitting with T Durable: The bulkhead Fitting made of POM material, featuring a robust construction that resists fading, cracking, or peSanpaint 2 Pieces 3/4 Inch PVC Bulkhead Fitting for Water Barrel, Water Tank, Rain Barrels,NPT3/4 Female Thread(1 inch I.D.) PVC Made of PVC, good corrosion resistance tough and not crack, or peel.Generic 2 Pack Stainless Steel Bulkhead Tank Fittings, Double 3/4" GHT Male to 1/2" NPT Female Threaded Garden Hose Bulkhead Wat High Quality Materials: Made from premium stainless steel, which is highly resistant to corrosion and rust.This ensuresuxcell uxcell Straight Pneumatic Push to Quick Connect Fittings Bulkhead Union 6mm Tube OD X 6mm Tube OD 2pcs Product Name : push to quick fitting; Tube Size : 6mm Tube OD X 6mm Tube ODNULYLU NULYLU 10pcs Abs Plastic Bulkhead Fitting Water Tank Adapter Connector Dn20 with Universal Compatibility and Greater Sea Tank adapter bulkhead: workmanship, resists rust and high temperature, threaded design without burr, smooth edge,watersourcing map sourcing map 2Pcs 1" Hose Barb Fitting, Brass Hex Head Straight Union Hose Water Bulkhead Pipe Fitting for Water Fuel Ai [SIZE&PACKAGE] Interface Diameter: 25mm/1"; Across-flat Width: 30mm/1.18"; Interface Length: 23 & 23mm/0.91" & 0.91"; OvKINBOM 10 Packs 1/4 Thru-Bulk Bulkhead Plastic Hose Barb Fittings Plastic Hose Barb Fittings 1/4" Pipe Connector Fittings for A Package Content: You will receive 10 sets of 1/4 thru-bulk barbed bulkhead fittings, each set includes a thru-bulk barbeCDQBWKJGFJ CDQBWKJGFJ 1 Piece Stainless Steel 304 3/4" Barb x 3/4" Hose Barb Thru-Bulk Bulkhead Fitting Bulkhead union coupling for connecting two hoses with the same diameter in a straight runZohisin AN6 Bulkhead Fitting Fuel Cell Adapter with PTFE Washer for Most Fluids Material Construction: Made with lightweight materials this AN6 Fuel Cell Fitting is both practical and lasting. Designeuxcell uxcell Straight Pneumatic Push to Quick Connect Fittings Bulkhead Union 8mm Tube OD X 8mm Tube OD 2pcs Product Name : push to quick fitting; Tube Size : 8mm Tube OD X 8mm Tube ODbeduan Beduan 1 NPS Male to 3/4 NPT Female Stainless Steel Bulkhead Water Tank Connector Thru-bulk Fitting for Water Tank Barre 3/4 NPT Female bulkhead connector for water tank, water inlet and outlet, and self-made water storage barrels.sourcing map Sourcing Map 2Pcs 1/2" Female 304 Stainless Steel Bulkhead Fitting Water Tank Connector Adapter Package includes 2 pack water tank connector (G1/2 female thread), comes with 2 pcs silicone gasket and 2 pack sealing tVtenyeo PVC Rain Barrel Spigot Kit 2 Pack 3/4" GHT Garden Diverter Kit with Bulkhead Fitting Garden Hose Faucet Thread Ball Valv The Rain Barrel Spigot Kit Includes: 2 pieces of 3/4 inch GHT PVC ball valves, 2 pieces of 3/4 inch plastic partition acSagaSave 2Pcs Brass Bulkhead Fitting, Pipe Fitting Hose Barb Bulkhead Brass Barbed Tube Pipe Fitting Coupler Connector Adapter fo Made of superior copper material with delicate appearance, not easy to damage and durable in use.SING F LTD SING F LTD 2pcs NPT3/8 Fuel Cell Electrical Bulkhead Fitting CFD-504 for 10GA Wire High Compatibility: Designed for fuel cells or tanks using 3/8" NPT threaded ports.Lophtnix Lophtnix 2PCS 304 Stainless Steel Hose Barb Fitting Thru-Bulk Bulkhead Straight Hex Union 1/2" Barbed x 1/2" Barbed with Bulkhead union coupling for connecting two hoses with the same diameter in a straight run.Mingzhe Rain Spigot Quarter Turn Valve Faucet for Water Tanks Pools Brass Bulkhead Fittings [Adaptive Fittings] The water valve features 3/4-inch male threaded brass bulkhead fittings on both ends, allowing for eANPTGHT ANPTGHT 1/2" Female ABS Bulkhead Fitting, Plastic Water Tank Connector Adapter Fitting with Plugs for Outdoor rain Barre Size:The double threaded bulkhead fittings are 1/2 inch G male and 1/2 inch G female thread(Bulkhead OD: 28mm).WADEO WADEO Rain Barrel Spigot, Brass Rain Barrel Quarter Turn Ball Valve Spigot with Bulkhead Fitting-Red 💧Two installation methods: Brass bulkhead fittings front mounting and back mounting. Designed for irrigation with RainFanx-AU 2 Pcs Brass Wrench Style Rain Barrel Faucet Kit,Leak Rust and Corrosion-Proof, Include Bulkhead Fitting and Washers, for DURABLE AND CORROSION-RESISTANT CONSTRUCTION:Crafted from solid brass with a stylish gold copper plating, this faucet kiQitdathn Qitdathn 4 PCS Rain Barrel Bulkhead Fitting with Plugs and Hole Saw Tool, 1 Inch PVC Spigot Connector Kit for Rain Barre Package Include: One hole saw, 4 pieces PVC bulkhead adapter(1 inch) and 4 pieces plugs(1 inch).ERGAOBOY ERGAOBOY 5Pcs 8MM to 8MM Brass Hose Barb Thru-Bulk Bulkhead Fitting, Straight Hex Union Fitting with 10Pcs Hose Clamps Size：8MM Hose Barb Thru-Bulk Bulkhead Fitting, Working pressure and temperature range: 0-1 MPA and -50-120°C.Hordion Hordion 3/8" Female 1/2" Male Brass Water Tank Connector Bulkhead Tank Fitting With 2 Rubber Ring Stablizing for Rain Ba Crafted from premium brass, this bulkhead fitting is designed to withstand high temperatures and pressure without corrosChillWaves ChillWaves PVC Bulkhead Fitting 3/4" Double Thread Connector Adapter for Water Tank, Aquariums, Rain barrels(8-PACK) Size - 3/4" Bulkhead Fitting. Note，This thread is not an NPT thread, please refer to the dimensional drawing for specifiuxcell uxcell Compression Tube Fitting 1/2" Tube OD x 1/2" Tube OD Bulkhead Union Coupling Adapter 304 Stainless Steel Fit for Tube OD: 1/2".Hooshing Hooshing Brass Bulkhead Fitting No Female 1" Male Water Tank Connector Theaded with Rubber Ring 【Size】No female 1" male thread. The fitting's OD is approx 1-9/32"/32.6mm. The thread is NPS, have no tapered. It's straKingBra KingBra 1/2" Male Solid Brass Water Tank Connector Bulkhead Fitting with Silicone Gaskets Size:Female Thread Diameter:15mm/0.59inch, Male Thread Diameter:20mm/0.79inch (G1/2 Thread), Length:50mm/2Zerodeko Zerodeko 1/2 Inch PVC Bulkhead Connector with Plug for Water Tanks and Rain Buckets, Lightweight Leak Preventing Tank Ad Bulkhead water tank connector adapters:included plug, the sealing effect is good and preventing leakage, convenient to uJeffergarden Jeffergarden 2 Pcs Brass Hose Barb Bulkhead Pipe Fitting for Leakproof Pipe Connection, Durable Brass Construction with Leakproof Connection: Designed for secure connections, this brass pipe fitting prevents leaks in your garden or plumbingUenede Uenede Brass Water Container Rain Barrel Faucets Spigot 3/4" G Male Thread Large Inlet to 3/4" GHT Male Thread Outlet wi 【High Quality Thread】Inlet end: 3/4"G male thread with 1/2"NPT Female thread; Outlet end: 3/4" GHT male thread. The fittGeneric Brass Water Container Rain Barrel Faucets Spigot 3/4" G Male Thread Large Inlet to 3/4" GHT Male Thread Outlet with Quar 🚰【Durable Brass Construction】: Made from high-quality brass, this water container faucet offers long-lasting corrosionYZMSZ YZM White Fittings Bulkhead Connector 1/4" Tube Quick connect RO Water Filter Pack of 10 (Bulkhead Connector 1/4) Material: POM(Polyoxymethylene), Polyethylene Plastic TubingJetuplusllc Fuel Cell Electrical Bulkhead Fitting 10GA Wire Fuel Pump Assembly CFD-504 Type:Electrical Bulkhead Fitting ConnectorLUOFANT High Flow Rain Barrel Spigot Kit, Lead-Free,304 Stainless Steel Faucet Kit for Rain Water Barrel, Water Tanks, 55 Gallon 【 Well-designed 】 Full path, large flow, no limited flow trouble, this is a good choice. Heavy structural design, durablLegines Legines Brass Pipe Fitting, Bulkhead Anchor Coupling, Bulkhead Tank Fitting, Frame Nipple, 1/8" NPT Female, 1-1/2" Lengt Female coupler for connecting NPT fittings through a bulkheadSYKUIHSG 10 Pack Brass Bulkhead Fitting with PTFE Tape, 1/2" Female & 3/4" Male Thread, Leak-Proof Water Tank Connector for DIY C 🔒 Premium Brass Construction: Crafted from high-quality brass, this bulkhead fitting offers excellent rust resistance aAlphacool Alphacool HF G1/4 Bulkhead Fitting Chrome Connector Fittinguxcell uxcell 1/4" Push to Connect Bulkhead Fittings, 5 Pack Straight Water Line Fitting for RO Water System, White Material: POM; Color: White; Fit Tube OD: 1/4"; Bulkhead Length: 10mm / 0.39inch; Total Size: 33mm x 22mm / 1.26inch x 0RAINPAL RAINPAL RBS012 Brass Rain Barrel Spigot (1/2" Ball Valve with Bulkhead Fitting and Thread Tape, LF Compliant ATTENTION: REVERSE THREADED FITTING NUT, Turn CLOCKWISE to LOOSEN. Due to long time storage, Brass may turn grey/black,Sanpaint REGNHLIF PVC Rain Barrel Diverter Kit, 3/4 Inch Rain Barrel Valve, Rain Barrel Spigot Kit with Bulkhead Fitting Adapter Made of high strength plastic, with good corrosion resistance tough and not easy to break.RAINPAL RAINPAL SSBF020 Stainless Steel 304 Bulkhead Tank Fitting (Double Female 1/2” NPT/FIP and Male 3/4" MHT Garden Hose Thre Solid Stainless Steel 304 Material, Lead FreeVINTORKY VINTORKY Bulkhead Water Tank Connector Leak-Proof 1/2 Inch with Plug PVC Bulkhead Fitting Oxidation Resistant PVC Adapte Tank bulkhead fitting:suitable for household, commercial and industrial using, bringing convenience to your daily life,bValley Industries Valley Industries BHF200-BC Bulkhead Fitting, 2" FNPT, Black 2" FNPT diameter holes for flexible connections to valves, connectors or adaptersGeneric Water Tank Connector - Solid Brass Water Tank Connector Bulkhead Tank Fitting,Solid Brass Bulkhead Tank Fitting Connecto Durability Ensured: Crafted from solid brass material, this tank fitting ensures long-term use without rust or wear, proMonland Solid Brass Bulkhead Fitting, 3 Sets 3/8 Inch Female 1/2 Inch Male Solid Brass Water Tank Connector Threaded with Ring Using thread linking to make connection more firmly. Not easy to leak with 2 Silicone Ring, double sided protection23% Off BroLuka Brass Bulkhead Water Tank Connector, 1 Inch BSP Male to 3/4 Inch BSP Female Threaded Fitting with Rubber Rings for Rain 【 Plate Penetration Connection 】 It realizes the through-type connection between 1-inch BSP external thread and 3/4-inchuxcell uxcell PVC Bulkhead Tank Adapter G3/4 Thread with Plug and 16mm OD Barbed Pipe Fitting for Rain Buckets Water Tanks 2 Se [3in1 2 Set] - G3/4 Female x 35mm Male Thread Adapter for 10mm Clamp Wall Thickness. G3/4 Male Thread x 14mm Length PlugBE-TOOL BE-TOOL Pneumatic Bulkhead Connector 5Pcs 6MM Brass Pneumatic Fitting Straight Through PM Bulkhead Union Push in Fitting ★Made of Brass and Nylon, wear-resistant and hard to corrodeNULYLU NULYLU Water Tank Connector 1/2 Inch Bulkhead Fitting PVC with Plug for Aquariums and Outdoor Rain Buckets Water tank connector part--commonly used in water tanks, water towers, water storage buckets, rain buckets,female bulkheautobahn88 Autobahn88 Aluminum Anodized Brake Line Fitting - Bulkhead Male Nut, AN4 to AN4 (Blue) AN4, JIC4, 7/16" x 20 UNFGeneric Generic PVC 1/2 Inch Bulkhead Water Tank Connector Part with Plug Lightweight Bulkhead Fitting for Water Towers and Stor Watering system bucket connector--made by pvc material, safe and durable, which could be used for very long time,bulkheapneumatik-24.de Pneumatic Bulkhead Fitting - Push in Fitting Bulkhead Plug Connection - Connector for Compressed Air & Neutral Gases (6 Box contents: 1 bulkhead fitting. Body: nickel-plated brass. Release ring: (PA 66)uxcell uxcell PVC Bulkhead Tank Adapter with White Plug Fitting G1 Thread for Rain Buckets Water Tanks 1 Set [2in1 1 Set] - Adapter Thread: G1 Female x 44.6mm Male; Clamp Wall Thickness: 10mm. Plug Thread: G1 Male; Thread Length:Hitefu Hitefu 4PCS Bulkhead Fitting, PVC Double Threaded Water Tank Connector, Ideal for Rain Barrels, Pools, Aquariums, Tubs, Dimensional compatibility: Double threaded bulkhead fittings come in sizes of 1/2 inch internal thread and 3/4 inch exteuxcell uxcell 1/4" Push to Connect Bulkhead Fittings, 2 Pack Straight Water Line Fitting for RO Water System, White Material: POM; Color: White; Fit Tube OD: 1/4"; Bulkhead Length: 10mm / 0.39inch; Total Size: 33mm x 22mm / 1.26inch x 0Zerodis Zerodis Superior Brass Bulkhead Fitting Coupler Connector Adapter for Instruments - Pack of 2 (6mm) [EXCELLENT DURABILITY] Made of premium brass material, this bulkhead pipe fitting offers excellent durability and long-lSENSTREE ZAOJIAO Tube Bulkhead Connector Push Fit Quick Connect for RO Water Reverse Osmosis System (Pack of 5) (1/4" Tube Bulkhe ★1/4" tube bulkhead connector.Hilangsan (2 pack) Hilangsan 1.5" Tri Clamp Weldless Bulkhead Stainless Steel Compression Bulkhead Fittings Homebrew Kettle Bulkhe 【304 Stainless Steel】The 1.5 inch bulkhead fitting is made of 304 stainless steel, anti-rust, high-temperature resistancgeneric Bulkhead Fitting, PVC Pipe Connector Bulkhead Fitting Plugs, Leakproof Multifunctional Accessory for Rain Barrels Aquari ♛Reliable and Durable Spigot: Our rain barrel spigot kit is made of good quality PVC materials, which are sturdy and resNorkmdi Norkmdi 2PCS Car 6AN Male to Male 90 Degree Bulkhead Flare Fitting Adapter, Anti-Rust Aluminum Vehicle Bulkhead Fitting High Grade Material: This car bulkhead flare adapter is crafted from high-quality aluminum, featuring high hardness andGeneric Brass Tank Fitting - Garden Hose Threaded Brass Water Tank Connector - Solid Brass Bulkhead Tank Fitting Connector for W Durability Ensured: Crafted from solid brass material, this tank fitting ensures long-term use without rust or wear, proKNFFSAAJL 10Pcs Brass Bulkhead Fitting 1/2 Inch Female 3/4 inch Male Easy Install Water Tank Connector Fitting for Rain Barrel(12 【Wide Application】This water tank bulkhead fitting is suitable for homemade water containers , bucket faucets , bucketsUenede Uenede 2PCS Solid Brass 90°Elbow Barb Bulkhead Fitting 5/8”OD Barb Bulkhead Coupling Tank Connector Hose Pipe Barb Fitti 【Package Include】2PCS Brass 5/8"OD Barb 90°Elbow Hose Bulkhead Fittings.RAINPAL RAINPAL SSBF020 Stainless Steel 304 Bulkhead Tank Fitting (Double Female 1/2” NPT and Male 3/4" NH Garden Hose Threaded) Solid Stainless Steel 304 Material, 100% Lead FreePxyelec Pxyelec 3/8 inch Bulkhead Quick Connector, 1/4 inch White Tube Fittings Bulkhead Connector for RO Water Reverse Osmosis Material: Polyethylene Plastic.Tbest AC Bulkhead Fitting AcHeater Bulkhead Air Conditioning Car 4Port Air Conditioning Bulkhead Hose Fitting Universal Modifi Fit for : A better replacement for Classic, for Hot Rod, and for GM Performance and for vehicles. The bulkheads are suitTsinghwang 2 Pack Stainless Steel Bulkhead Tank Fittings, Double 3/4" GHT Male to 1/2" NPT Female Threaded Garden Hose Bulkhead Wat High Quality Materials: Made from premium stainless steel, which is highly resistant to corrosion and rust.This ensuresX AUTOHAUX X AUTOHAUX Car Female AN8 8AN to Male AN6 6AN Flare Hose Reducer Fuel Line Fitting Adapter Fuel Oil Cooler Bulkhead Adap [Fitting Size] AN8 (Female) to AN6 (Male) Flare Reducer Fitting Adapter. Male Inner Diameter: 5.8mm / 0.23", Female InneMetalwork Metalwork 304 Stainless Steel Compression Tube Fitting, Bulkhead Union, 1/4" OD x 1/4" OD (2 Pcs) Bulkhead union fitting to allow tube connection on either side of barrierAC PERFORMANCE Aluminum Tee -16AN Bulkhead Fitting Fuel cell bulkhead size is -16 ANtooloflife tooloflife 1/4" Bulkhead Connector Water Purifier Adapter, Push Fit Tube Fittings for RO Reverse Osmosis Systems and Fri Premium Durable Quality: Thickened shell design offers excellent pressure resistance against water fluctuations and corrAlphacool Alphacool HF G1/4 Bulkhead Fitting Deep Black Connector Fittingsuiwotin Suiwotin 2pcs NPT1 PVC Bulkhead Fitting, 1 Inch Plastic Water Tank Connector Threaded Thru-Bulk Pipe Fittings for Rain B Package Included: 2 x Bulkhead Fitting 1 Inch. Size: 2.33" x 1.95"/59.3mm x 49.5mm (L*H), Outer Diameter: 1.73"/44mm, InBoxonly Boxonly Bulkhead Fitting, G1 Male Male, for Pipes, Faucets, Hoses, Fittings, Tube Adaptor Connector Hose Fitting, with 2 Material: Made of brass, has good strength and corrosion resistance.