Log In Log In  |  Checkout   |  26 item(s)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 706, Membrane Filter Casing Housing Assembly
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker

View Cart$823.20
Specials Log InCreate Account Checkout  Shopping Cart26 item(s)
1 x Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x 532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x Value Pack- Entire 3 Years of Replacement Filters Bundle RO6ALK
1 x KF511, Polished Chrome Cross-Handle with Gold Trim Faucet
1 x 745, AFAN0409 Female Garden Hose / Laundry Hose Adapter
1 x 4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x 532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x 1.SED2005, 1st stage sediment filter 20" inch for RD322 RO260
1 x KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x KF355, Antique Brushed Brass / Iron Finish Drinking Water Faucet
1 x BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x FRQ550, Flow Restrictor 500 to 600ML / min
1 x Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x 706, Membrane Filter Casing Housing Assembly
1 x 201, 1st stage sediment filter (replace every 6-12 months)
1 x MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x 6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x 350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x DB40, DI Resin Refill Bag for DI210, RD322
1 x 581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker

View Cart$823.20

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