Log In Log In  |  Checkout   |  203 item(s)
2 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
3 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
10 x Optional: 564 Membrane Filter Housing Wrench Opener
4 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
6 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
4 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
3 x 214, Clear Inline Filter Cartridge Empty Case
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
3 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x 6th Stage pn215 Refillable inline DI filter (color change)
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 752, DC Booster Pump w/ Transformer
4 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
5 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 741-14, Diverter Valve for Countertop Water Units
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 706, Membrane Filter Casing Housing Assembly
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x 719, Drain Saddle Clamp / Valve
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x 578, TDS Water Quality Meter tds-3
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
View Cart$6,465.71
Home
Specials Log InCreate Account Checkout  Shopping Cart203 item(s)
2 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
3 x B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
10 x Optional: 564 Membrane Filter Housing Wrench Opener
4 x Parts, Ro Water System Installation Parts Bag 1/4"
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
6 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
3 x 4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR125
2 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
3 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x 720, Feed Water Adapter with Needle Valve
3 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
4 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x WH-20, Whole House Water Treatment Carbon Block Filter System Bi
1 x 4044-K qty 2 Male Elbow Fitting Compression type 1/4"
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 3/8 x 1/4 inch
1 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x MK300, Maintenance kit for RO535, RO435, RO545, AR104H
3 x 214, Clear Inline Filter Cartridge Empty Case
2 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
3 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x 721, Self-Piercing Valve, Feed Water Adapter for Copper Pipe
1 x SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
2 x 213, 5th or 6th stage inline carbon filter (replace in 12 mons)
3 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x CKV0402, Blue color Elbow Check Valve Elbow Type
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x 215, 5th or 6th Stage Refillable inline DI filter (color change)
2 x BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
2 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x WH-25, Whole House Water Treatment Sediment Filter System 20" Bi
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x CBV-0404, Tank Ball Valve to 1/4 tubing *standard RO tank size*
1 x Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x NM-5102, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
2 x 5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
2 x 6th Stage pn215 Refillable inline DI filter (color change)
3 x 818, DI Resin Refill Bag 16oz (good for up to three refills)
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x SW SHELL, Countertop SW1 Empty System Only No Filter
1 x 752, DC Booster Pump w/ Transformer
4 x B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
5 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
4 x 205 2nd stage solid carbon block filter (replace every 12 month)
1 x PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x EMT-10, Empty Filter Cartridge Casing Housing
1 x MKP, Maintenance kit for K5150P K6150P AR150P
1 x SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
2 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x 752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x 335, 4th stage TFC 35/45 US membrane filter (every 2-3 years)
2 x Special, Single Stage Housing Bracket Shell Connection Kit
3 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x 7044-K Union Tee Connector Fitting Compression type 1/4"
2 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 741-14, Diverter Valve for Countertop Water Units
4 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 706, Membrane Filter Casing Housing Assembly
2 x FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
2 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
4 x 733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
2 x PSW-280 Aquatec Pressure Switch 80 psi shut off 1/4 tubing TSO
2 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x 285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
2 x PSW-2100 Aquatec Pressure Switch 100 psi shut off 1/4 tubing TSO
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x B2012, 20" Long Slim Filter Cartridge Housing RO260 RD322
1 x 709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve
1 x SV-24DC-38-Brass KSD Solenoid Valve 3/8" brass 24V DC ESO
1 x 288, CB1010BB Big Blue Carbon Block Filter 20K-50K gal 10"
1 x PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x 719, Drain Saddle Clamp / Valve
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x IM60, Ice Maker or RV Water Filter, Inline Typle
1 x 578, TDS Water Quality Meter tds-3
1 x 741-38, Diverter Valve for RO DI Water Systems
1 x DDP5800, Aquatec Demand Delivery Pump 5851-7E12 Increase Output
1 x SET8855-300 Aquatec 5853 Booster Pump Assembly for 300GPD RO Sys
1 x FM-8100TG44, DigiFlow Digital Water Flow Rate Meter
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x TMR-220V-2A Aquatec TACS234-48 Transformer Power Supply EuroPlug
1 x HK120-P-TK-220V for EURO 220V / 50Hz
1 x CP-KOR24, O-RING Oring FOR KOOLERMAX MEMBRANE FILTER HOUSING
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x MK225, Maintenance kit for Honeywell RO9100 Filtercold RO5 AV180
1 x 1/2" NPT Digiflow Digital Flow Meter count up total Water Gallon
1 x KF750, Elite Series: Polish Chrome Drinking Water Faucet
1 x 1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x 532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x AQUATEC CDP 8852-2J03-B424 Booster Pump 220V Euro Transformer
1 x Bundle Filter KPAK-104m Sediment Carbon Block DI Resin Membrane
1 x 277, SED1005BB Big Blue 5 micron sediment filter 10"
1 x 204, 2nd stage GAC filter (replace every 6-12 months)
1 x 773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 318, 4th stage TFC-18 US membrane filter (replace every 2-3 yrs)
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x CP-OR55, O-RING FOR MEMBRANE FILTER HOUSING WaterGeneral Systems
View Cart$6,465.71

ABU, Bulkhead Union Connector [ABU]

$4.50

ABU, Bulkhead Union Connector



* ABU, Bulkhead Union Connector

* Please choose size from the selection box below. First number is tubing OD Outside Diameter and second number is NPT National Pipe Thread. (Pipe sizes can be confusing even for the experienced user. Pipe size is not the actual outside or inside diameter of the pipe but is the industry accepted designation. If you have any question please email us first.)
* 1/4" Tube OD x 1/4" NPTF Thread ABU0404
* 1/4" Tube OD x 3/8" NPTF Thread ABU0406
* 3/8" Tube OD x 1/4" NPTF Thread ABU0604
* 3/8" Tube OD x 3/8" NPTF Thread ABU0606
* 1/2" Tube OD x 1/2" NPTF Thread ABU0707


* Water & foods use: Products are manufactured from safe, non-toxic materials meeting the requirements of the US FDA, ERAS, ANSI/NSF-51,61, and SK Zert. Our products are widely used in water purification, food/beverage, and pneumatic systems.

* Function & Quality: Provides quick and convenient assembly-saving time & expense.

* Collet Design: Our unique oval collet design is superior and more practical, and is an improvement welcomed by our world wide customers in all industries.

* Additional Applications: Beyond water and food use, fittings can be used with air, gases, vacuum, & liquids. All connections can be assembled & disassembled repeatedly. A broad range of sizes covers a broad scope of applications.

* We carry different fittings in variation of sizes: 1/4", 3/8", or 1/2" adapters, connectors, fittings, or valves.  Most are not listed online, to avoid confusion to majority of RO system customers.  

* Send us a message with specification, intended application, and image of your setup or old fitting  to check if we have what you need. 

Available Options:

Size Combination:

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