Log In Log In  |  Checkout   |  70 item(s)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FRQ850, Flow Restrictor 850ML / min
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FRQ200, Flow Restrictor 200ML / min
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
7 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x *Discontinued* RD106
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x 578, TDS Water Quality Meter tds-3
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet

View Cart$2,818.84
Specials Log InCreate Account Checkout  Shopping Cart70 item(s)
1 x Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x 205, 3rd stage solid carbon block filter (replace every 12month)
1 x 531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x 213, 4th stage inline carbon filter (replace every 12 months)
1 x Liter Digiflow 1/4NPT Digital Flow Meter count up total Water
2 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x FRQ850, Flow Restrictor 850ML / min
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x 1st stage SF05 sediment filter (replace every 6-12 months)
1 x FRQ200, Flow Restrictor 200ML / min
1 x WH-250, Whole House Water Treatment Sediment Carbon Filter Syste
7 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
2 x 3rd stage C10 carbon block filter (replace every 6-12 months)
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
2 x 701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
3 x Optional: 564 Membrane Filter Housing Wrench Opener
1 x 3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x NM-5001C, HONEYWELL COUNTERTOP WATER FILTER *DISCONTINUED* SW1
1 x 2nd stage C10 carbon block filter (replace every 6-12 months)
1 x 6th Stage pn215 Refillable inline DI filter (color change)
2 x 290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
3 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x 202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x 568,Heavy-Duty Filter Housing Wrench, HoneyWell or FilterCold
1 x Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x 673, Replacement UV Lamp Light for 602 (6 Watts)
1 x FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
2 x OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x 225, 5th stage Inline Alkaline filter with clear case (annual)
1 x 326, 3rd stage TFC 24 /26 US membrane filter (replace 2-3 yrs)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x .AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x 732, Inline Pressure Gauge 0 to 300 psi for RO filter system
1 x FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x 701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x 727, Feed Water Adapter 3/8" compression adapter 1/4" inline bal
1 x 399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x *Discontinued* RD106
1 x SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
1 x TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x 578, TDS Water Quality Meter tds-3
1 x .AR125NTF KoolerMax AR125 RO System Shell without tank & faucet

View Cart$2,818.84

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:

Reviews
Home  |   Specials  |   Log In  |   Create Account  |   Checkout  |   Shopping Cart