ABU, Bulkhead Union Connector [ABU]

$4.50

* 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

1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	Discontinued RD106
1 x	.K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	IM60, Ice Maker or RV Water Filter, Inline Typle
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	205, 5th stage final carbon filter
1 x	Discontinued RO585ERP
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150

View Cart	$2,956.29

1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	4044-K Male Elbow Fitting Compression type 1/4" OD 1/4" NPT
1 x	Discontinued RD106
1 x	.K5 KoolerMax 75GPD 5 STAGE REVERSE OSMOSIS RO FILTER SYSTEM
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	IM60, Ice Maker or RV Water Filter, Inline Typle
1 x	FPK11, High Quality Fitting and Connector 1/4" (Value-Pack)
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	7044-K Union Tee Connector Fitting Compression type 1/4"
1 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	205, 2nd stage carbon block filter (replace every 12 months)
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
1 x	O-RING RINGS FOR WH20 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 20"
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	4042-K Male Elbow Fitting Compression type(membrane housing use)
1 x	.K6A KoolerMax 75GPD 6STAGE Alkaline pH REVERSE OSMOSIS RO FILTE
1 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
2 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	6044-combo Compression Type Fitting Elbow and Tee fitting
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
1 x	285, Big Blue SED2005BB 20" Sediment filter WH25 WH250 WH2201
1 x	.K5150PNTF, KoolerMax K5150P RO System Shell without tank faucet
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	205, 5th stage final carbon filter
1 x	Discontinued RO585ERP
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150

View Cart	$2,956.29