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	SW SHELL, Countertop SW1 Empty System Only No Filter
2 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	214, Clear Inline Filter Cartridge Empty Case
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
4 x	205 2nd stage solid carbon block filter (replace every 12 month)
2 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	Discontinued RD102
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	752, DC Booster Pump w/ Transformer
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	Discontinued RO155
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
3 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
3 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
5 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	Discontinued RD106
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
3 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	KT-103, Optional Manual Membrane Flush Valve
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	N-14-1M, Nipple Fitting connector between standard RO housing
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
3 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
1 x	HK120-P-TK for USA 110V / 60Hz
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Discontinued RO155C
1 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	Discontinued RD150
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI

View Cart	$7,280.69

1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
2 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	214, Clear Inline Filter Cartridge Empty Case
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
4 x	205 2nd stage solid carbon block filter (replace every 12 month)
2 x	385, 4th stage TFC 75/85 US membrane filter (every 2-3 yrs)
1 x	Discontinued RD102
2 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
1 x	4064K Male Connector Elbow 3/8 OD Compression Fitting 1/4 NPT
2 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
2 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	KF355UP, SUBSTITUTE/Upgrade to Antique Brushed Brass Iron Finish
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
2 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
2 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
2 x	752, DC Booster Pump w/ Transformer
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
2 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	Discontinued RO155
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
3 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
3 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
2 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD106
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6150P
5 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	Discontinued RD106
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/2 x 3/8 inch
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
2 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	SET8855 Aquatec 5853 Booster Pump Assembly for Aeroponics System
2 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	AMTU-0404 Male Tee Union Connector NPT Thread 1/4" Quick Connect
2 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	1070, PAE LARGE RO Storage Pressure Tank 14 GALLON 14G
1 x	.AR150PNTF, KoolerMax AR150P RO System Shell without tank faucet
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO585
1 x	5th stage 225 Inline Alkaline filter with clear housing (annual)
1 x	532bpg, PAE RO water pressure tank blue bladder gauge valve 4G
3 x	MK550, Maintenance kit for RO585, RD102, RD106, RO6, K5, K6
1 x	.RD322 Aquarium 260-300 GPD REVERSE OSMOSIS RO+DI WATER SYSTEM
1 x	1044-K Male Connector 1/4 OD x 1/4 NPT Compression Fitting
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	KT-103, Optional Manual Membrane Flush Valve
2 x	Parts, Ro Water System Installation Parts Bag 1/4"
1 x	N-14-1M, Nipple Fitting connector between standard RO housing
2 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
2 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
1 x	KF511UP SUBSTITUTE/Upgrade Faucet CHROME GOLD TRIM CROSS HANDLE
1 x	CKV0402, Blue color Elbow Check Valve Elbow Type
3 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	HK120-P-TK-220V for EURO 220V / 50Hz
1 x	HK120-P-TK for USA 110V / 60Hz
1 x	.AR125 Dual Outputs Aquarium & Home Drinking RO Filter System
1 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	CBV-0404, Tank Ball Valve to 1/4 tubing standard RO tank size
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	KF320UP, SUBSTITUTE/Upgrade Faucet BRUSHED NICKEL STAINLESS STEE
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Discontinued RO155C
1 x	FHP2012, 20" long Filter Cartridge Casing Housing RO260 RD322
1 x	4044-K qty 2 Male Elbow Fitting Compression type 1/4"
1 x	CBV-38, Tank Ball Valve to 3/8 tubing
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	.AR125NTF KoolerMax AR125 RO System Shell without tank & faucet
1 x	.AR122 KoolerMax 6STAGE Aquarium Reef REVERSE OSMOSIS RODI WATER
1 x	Discontinued RD150
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	6044-K Tee Fitting Compression Type 1/4"OD 1/4" NPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	EMT-10, Empty Filter Cartridge Casing Housing
1 x	.AR104H High Efficiency Membrane Aquarium Reef Aeroponics RO DI

View Cart	$7,280.69