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Best Choice EMSea 
EMSea 2pcs 8mm to 6mm Barb Reducer Tube Mender Splicer Joiner Union Brass Fitting Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability.Best Value CheeMuii 
CheeMuii 23 PCS Brass DOT Air Line Fittings Kit 1/4 3/8 1/2 DOT Quick Connect Air Fittings Straight Union Push to Connec 23 PCS PACKAGE: The 23 pcs DOT air brake fittings kit includes: 8 pcs 1/4 inch straight union DOT fittings, 8 pcs 3/8 inHASAOMOI 
HASAOMOI 5PCS Air Brake Nylon Tubing Brass Union Fitting, 3/8" Tube OD x 1/4" NPT Thread Air Compression Straight Union High Quality Precision Brass: 3/8" Tube OD x 1/4" NPT Thread straight DOT approved fittings are made of high quality solAcbbMNS 
AcbbMNS 10Pcs Brass Hose Barb Reducer Fittings, 8mm to 6mm Barb Hose Fitting Adapter Straight Union Connector for Air Wa 【Package Included】10-Pack 8mm barb OD to 6mm barb OD Brass Hose Barb Reducer Fittings.CheeMuii 
CheeMuii 35 PCS Brass DOT Air Line Fittings Kit 1/4 3/8 1/2 DOT Quick Connect Air Fittings Straight & Tee Union Push to 【35 PCS PACKAGE】- The 35 pcs DOT air brake fittings kit includes: 8 pcs 1/4 inch straight union DOT fittings, 8 pcs 3/8Nikovoke 
10mm 3-Way Brake Line Tee, Bras Pipe Fitting Connector with 3 M10 Male Nuts, Universal Fit for 3/16" Automotive Brake Sy 【THREE-WAY DESIGN】Enables flexible branching of brake lines, connecting the main brake line to two auxiliary lines simul38% Off X AUTOHAUX 
X AUTOHAUX 5mm Brass Barb Hose Fitting Straight Union Connector for Air Water Gas Oil 5pcs Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeabilityBroLuka 304 Stainless Steel Union Pipe Fitting, 1 Inch BSP Female x 1 Inch BSP Female for Water, Oil, Gas Pipe Connections 【 Detachable connection 】 Easily achieve quick connection and separation of 1-inch BSP internal thread pipes. The disassAsheredetella 1/4 Brake Line Pressure Fittings, 12 Pieces 7/16 Inch-24 Threads Brass Brake Line Fitting Assortment for 1/4 Inch Brake High Quality Material: Brake line fitting is made of high quality brass with anti-rust and anti-corrosion technology, duAcbbMNS AcbbMNS 10Pcs T Shape Tee Pneumatic Connector, 12mm (1/2 inch) Push to Connect Fittings, Quick Release Air Line Fitting 【Package Included】You will get 10pcs 12mm(1/2") Tee Union Connectors, fit for OD 1/2" tube. Suitable for PU / PA / PE /AcbbMNS AcbbMNS 10Pcs T Shape Tee Pneumatic Connector, 6mm (1/4 inch) Push to Connect Fittings, Quick Release Air Line Fitting P 【Package Included】You will get 10pcs 6mm(1/4") Tee Union Connectors, fit for OD 1/4" tube. Suitable for PU / PA / PE / PAcbbMNS AcbbMNS 10Pcs 12mm (1/2 inch) Push to Connect Fittings, Y-Shape Pneumatic Connector Quick Release Air Line Fitting Plast 【Package Included】You will get 10pcs 12mm(1/2") Y-shape Union Connectors, fit for OD 1/2" tube. Suitable for PU / PA / PBOXOB BOXOB 2pcs 350157 Pool Pump Union Parts, Replacement Kit Unions Fittings Compatible with Pentair Superflo & Superflo Var Product Included: You will receive 2 pieces of pool pump unions, 2 screw caps, and 2 gaskets to meet your replacement neTianTianUp 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 opeVGOL 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.Dorman Dorman 800-142 Fuel Line Compression Union - 5/16 In. Steel Line, 3 Pack Available in many different styles, including elbows, union, and teesAcbbMNS AcbbMNS 20Pcs 12mm (1/2 inch) Straight Push to Connect Fittings, Quick Release Pneumatic Connector Air Line Fitting Plas 【Package Included】You will get 20pcs 12mm(1/2") Straight Union Connectors, fit for OD 1/2" tube. Suitable for PU / PA /Jntahecg 4mm Straight Push to Connect Fittings, Quick Release Pneumatic Connector Air Line Fitting Plastic Union Pipe Tube Fittin Efficient Fluid Handling: This Straight Quick Fitting, model PU-4, accommodates 4mm outer diameter tubes and is optimizeYitoking 3/16 Brake Line Fittings - Premium 3/8' - 24 Threads Brake Fittings Assortment for 3/16' Brake Line Tube (6 Unions, 12 N INVERTED FLARE UNION: Any 2 (3/16 inch) brake lines can be easy to joined with Muhize unions. both the sizes for unionsAcbbMNS AcbbMNS 10Pcs 12mm (1/2 inch) Elbow Union Connectors Push to Connect Fitting, Plastic Air Line Pneumatic Fitting Quick R 【Package Included】You will get 10pcs 12mm(1/2") Elbow Union Connectors, fit for OD 1/2" tube. Suitable for PU / PA / PEECSiNG ECSiNG 5X 5mm Brass Straight Compression Fitting Union Hex Head for 3/16" Automotive Brake Line Material: Brass; Width at both ends: 10.8mm; Width in the middle: 10mm; Tube diameter: 5mm; Total length: 30mm; DiagonalBroLuka Brass Compression Tube Fitting, Female Compression Union Straight Connector for Fuel, Air, Liquid, Oil, Gas, Vacuum Line 【 Welded-free connection 】 Brass compression straight-through pipe joint, which can achieve reliable connection of metaluxcell 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 ODuxcell 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 ODAilbiuko Ailbiuko 53 PCS DOT Brass Compression Air Brake Nylon Tubing Fittings,Straight Union Fitting Assortment Kit 1/4" 1/8" 3/ STRAIGHT UNION KIT: The dot air compression union fittings kit package includes 53pcs : 4 pcs 1/8" x 1/8" compression tuECSiNG ECSiNG 3pcs Union Fitting O-Ring Leak Stop Ring 6020018 350099 Outer Diameter 56mm Thickness 3.5mm Compatible with Penta Size: Outer diameter: 56mm. Thickness: 3.5mm.LTWFITTING LTWFITTING 15mm OD x 10mm OD Compression Reducing Union, Brass Compression Fitting(Pack of 2) Package Include: 2pcs.boeray Boeray 26pcs Quick Connect Brass DOT Air Line Fittings Straight Union 1/4” 3/8” 5/16” Tube Push to Connect Fittings Air 【Straight Union Kit】26pcs DOT air line fittings kit: 10pcs 1/4” OD union + 10pcs 3/8” OD union + 6pcs 5/16” OD union quiEVIL ENERGY Evil Energy 6AN Y Adapter Block Coupler Union Fitting Splitter Flare Male Thread Aluminium Alloy Black -6 AN to dual -6 AN Y fitting is made of aluminum alloy 6061-T6,and hard-anodized coating is compatible with alcohol, exBIGTEDDY 3 Way Brake T Piece Tee and 3-Male Nuts Short Union Metric M10 3/16 Pipe-10mm *3 Way T piece & 3 M10 male short nuts. 1 x 3 Way brake pipe union. For use with 3/16" pipeGermerse Brake Pipe Fitting Union, 2Pcs/Set 3/8in UNF Unions Female Male Brake Tube Joiners Antirust for Auto Easy Installation: Easy to install, no complicated tools required, convenient to use, save time and effort.Pysrych Pysrych 304 Stainless Steel Compression Tube Fitting Union with Double Ferrules 3/8" OD x 3/8" OD, Pack of 2 Union for connecting and disconnecting two pipes more easily than couplingsBriny 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.TopHomer PVC Union Coupling, Quick Connector Slip PVC Pipe Fitting Adapter for Swimming Pools and Outdoor Plumbing, DN50 / 2" 【Pressure Resistance】PVC union pipe fittings are made of thickened material to increase their performance, it can withstNikovoke 304 Stainless Steel Union, 1/2" & 1" BSP Female Threaded Pipe Fitting for Water, Oil, Gas Lines and Plumbing Systems [Specifications] 1‑inch BSP external thread and 1/2‑inch BSP; Working pressure: 0 – 2 MPa; Operating temperature: 0 – 18sourcing 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"; Ovuxcell 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".Vis 1/4" Barb Tee, Brass Hose Barbed T Union Fitting, Hose ID 1/4" Barb x 1/4" Barb x 1/4" Barb, Pack of 5 1/4" barb tee to connect 1/4" I.D. hose,we can provide customized orders,including oem.17% Off BroLuka Brass Compression Tube Fitting, Female Compression Union Straight Connector for Fuel, Air, Liquid, Oil, Gas, Vacuum Line 【 Welded-free connection 】 Brass compression straight-through pipe joint, which can achieve reliable connection of metalBENLIUDH BENLIUDH 3/4 inch PVC Pipe Union Fittings, PVC Connectors Female Thread Coupling (3/4", 4pcs) Material: PVC pipe fittings are made of heavy duty high quality PVC with high compressive strength and weather resistancBadafaci Badafaci 10Pcs Plastic Hose Equal Barbed Hose Pipe Fitting Connector Adapter Union Splice for Pharmaceutical Food Bevera [Versatile Connectivity Solution] Designed for seamless hose connections these fittings support pump tubing and siliconeSagaSave 50mm PVC Pipe Fitting Union Connector Solvent Socket, Grey Plumbing Straight Joint Quick Connector [6 Size Options] The PVC union pipe fittings are available in 6 IDs, which are 1/2" (20mm), 3/4" (25mm), 1" (32mm), 1-1/NOVINO Air Line Service Kit for Air Spring Bag Suspension with Fittings, Air Line Kit Includes 20 Feet Air Line Tubing,Schrader The air line service kit with 1/4 inch air line tubing and airbag suspension parts fittings to replace broken air bag aiSKYPRO 5Packs Plastic Hose Barb Fitting,10mm x 10mm Barbed Splicer Mender Joint Adapter Union Fitting 【Package included】- 6pcs Plastic Hose Barb Fitting.SagaSave 40mm PVC Pipe Fitting Union Connector Solvent Socket, Grey Plumbing Straight Joint Quick Connector [6 Size Options] The PVC union pipe fittings are available in 6 IDs, which are 1/2" (20mm), 3/4" (25mm), 1" (32mm), 1-1/X AUTOHAUX X AUTOHAUX 15pcs Motorcycle Brake Line Tube Fittings 3/8"-24 Threads Assortment for 3/16" Hydraulic Brake Lines Union Du [Size] Thread Size: M10x1.0, Outer Threads Size: 3/8"-24 Threads Assortment for 3/16", Total Size: 15x10mm / 0.59"x0.39"NDNCZDHC an Fittings, 4Pcs AN6 to AN6 Male to Male Fitting Fuel Line Adapter Straight Aluminum Black Anodized for Flare Union Fitting Size: This is a heavy duty 6AN male to AN6 flare union coupler, especially designed to match fuel hose and hoseX AUTOHAUX X AUTOHAUX 6mm Brass Barb Hose Fitting Straight Union Connector for Air Water Gas Oil 5pcs Made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeabilityEVIL ENERGY Evil Energy 6AN Female to 6AN Female Straight Swivel Coupler Union Fitting Adapter Aluminum Black 2PCS Size: The fitting is female AN6 to female AN6. The thread size is 9/16-18 UNF.AC PERFORMANCE Male to Male Hose Fittings 10AN flare union 90 deg AN10 to AN10, 7/8" x 14 UNF, 90 deg, male flare unionNikovoke 2Pcs OD Push to Connect Fittings, 1/2" Female PT Thread 6mm Nickel-Plated Copper, Air Hose Fittings Pneumatic Push in St 【Stable Operation】Suitable for various pneumatic or fluid systems, it is the optimal choice for air compressors, pneumatsmseace 26Pack 3/16 Inch Brake line kit Include 25 FT Copper-Plated Brake Lines with Fitting(16pcs Fittings,2pcs Union+4pcs Nut) 3/16 Inch 25 FT Brake Line Kit: Transform your brake line installation experience with our comprehensive kit! Featuring19% Off Metalwork Metalwork 304 Stainless Steel Compression Tube Fitting Union 5/8" OD x 5/8" OD Coupling (2 Pcs) Union for connecting and disconnecting two pipes more easily than couplingsLophtnix Lophtnix 304 Stainless Steel Compression Tube Fitting Union 10mm OD x 10mm OD, Pack of 2 Union for connecting and disconnecting two pipes more easily than couplings.Swpeet Swpeet 30Pcs in Set Copper Coated Brake Line Kit, Brake Line with Flaring Tool Kit, Includes 16 Fittings and 4 Unions, F 💯【What You Get】------- In the kit, you will get 30pcs copper coated brake line set. Includes 1pcs brake line, 2pcs 3/16BroLuka 2Pcs Push Fit Reducer Fittings, Quick Connect Pneumatic Straight Union for Air Compressor and Vacuum Pump Lines 【Swivel Connector】The 360° swivel straight connector design offers flexible connection and prevents hose tangling. It aluxcell uxcell 25mm Slip x 25mm Slip Metric PVC Pipe Fitting Union Solvent Socket Quick Connector 25mm Slip x 25mm SlipNikovoke Brass Compression Tube Fitting, 6MM OD X 6MM OD Female Thread Union Straight Connector [Stable Performance] The precise threading ensures tight fitting between components, offering strong load-bearing capaciHanztefu 2" PVC Union Coupling Pipe Fitting Schedule 40, Slip x Slip Socket Adapter with EPDM O-Ring for Irrigation Sprinkler Sys 【Grade-A PVC Material for Strength & Durability】 Made from top-grade PVC, this 2-inch union coupling delivers outstandinuxcell uxcell Plastic Straight Union Push to Connect Tube Fitting 10mm OD Push Fit Lock 10pcs Pack of 10pcs 10mm OD plastic straight tube fittingBroLuka 2 Pcs 304 Stainless Steel Reducing Hose Barb Adapter, 13mm to 10mm Barb Splicer Union Mender for Water, Fluid, and Air L [Specifications] Operating range: 0‑2 MPa, temperature 0‑180°C. Sizes: 13mm‑10mm, 12mm‑8mm, 8mm‑6mm. Package includes 2Be In Your Mind Be In Your Mind 5pcs 8mm Tube OD Air Flow Control Valve Union Pneumatic Speed Control Flow Controller Throttle Valve Spe The throttle valve hose joint is made of plastic and copper, which has high compressive strength, high stability, corrosLyreh Lyreh 2pcs 350157 Union Replacement Kit for Pentair Superflo, Pool Pump Union Parts Compatible with Pentair Superflo & S Package Includes: You will get 2 pieces of pool pump unions, consisting of 2 pieces of tubes, 2 pieces of washers and 2Liimevvon 20 pcs 3/8" to 1/4" OD Straight Union Reducer, Quick Connect, Push Fit Water Tube Fitting for RO Reverse Osmosis, Water Package Quantity: 20 packNikovoke Brass Compression Tube Fitting, 8MM OD X 8MM OD Female Thread Union Straight Connector [Stable Performance] The precise threading ensures tight fitting between components, offering strong load-bearing capaciHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,4mm,M5) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,6mm,M5) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,4mm,1/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,4mm,3/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,10mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,8mm,1/4inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,6mm,1/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,12mm,1/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,10mm,1/4inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,12mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,8mm,1/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,12mm,1/4inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,8mm,3/8inch) Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,10mm,1/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,14mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,12mm,1/4inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,6mm,1/4inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,4mm,1/4inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,8mm,1/2inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,6mm,1/2inch Secure Connection: Provides reliable sealing for leak preventionJohn Guest JG Speedfit PEI0220P 1/2-Inch CTS Union Tee NO TOOLS REQUIRED: Push-to-connect fittings provide a simple, quick, reliable, leak-free connection with no tools requirHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,10mm,1/2inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PCF,12mm,1/2inc Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,16mm,1/2inch Secure Connection: Provides reliable sealing for leak preventionHUHAXIXI Tube Compression Union Fitting 1/8 3/8 1/2inch BSPP, Male Female 4-16mm Brass Pipe Fitting Elbow 1 piece(PC,16mm,3/8inch Secure Connection: Provides reliable sealing for leak preventionNative Union Native Union Ultralight Sleeve – Durable, Lightweight, Sustainable – Made of 100% Recycled Ripstop Fabric – Compatible w COMPATIBILITY: Designed for MacBook Pro 14" (2021 & later) and most 14-inch laptop (≤ L33.6cm x W24.4cm)HUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(1/16 inch*1/8 inch) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(1/8 inch*1/4 inch) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(4MM*6MM) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(2mm*4mm) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(4mm*8mm) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(3MM*6MM) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(3MM*8MM) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(6MM*8MM) Lightweight: Reduces overall system weight without compromising strengthHUHAXIXI 1pc Sturdy PTFE Compression Union Fitting, Reducer Plumbing Coupler Connection Leak-Resistance(3mm*4mm) Lightweight: Reduces overall system weight without compromising strength