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

3 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
3 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	NM-5102, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
3 x	Parts, Ro Water System Installation Parts Bag 1/4"
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x	TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x	720, Feed Water Adapter with Needle Valve
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	Discontinued RO585NTF
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	TMR-AQT-68, Transformer Power Supply Aquatec TACS114-19EP for 68
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	Discontinued RO585ERP
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	EMT-10, Empty Filter Cartridge Casing Housing
2 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	IM60, Ice Maker or RV Water Filter, Inline Typle
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125

View Cart	$5,234.90

3 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
3 x	205, 3rd stage solid carbon block filter (replace every 12month)
2 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	3150, 4th stage TFC-150 US membrane filter (every 2-3 yrs)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RO155
2 x	205 2nd stage solid carbon block filter (replace every 12 month)
2 x	Optional: 564 Membrane Filter Housing Wrench Opener
3 x	BUNDLE PACK ANNUAL FILTER KIT FK3 WaterGeneral 102 150 (3 ITEMS)
2 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
2 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x	399, 4th stage TFC-100 US membrane filter (every 2-3 yrs)
2 x	3.CB2010, 3rd stage carbon block filter 20" inch for RD322 RO260
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD102
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	225, 5th stage Inline Alkaline filter with clear case (annual)
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle K6ALK
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	NM-5102, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
1 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	B1034, 10" Big Blue Filter Housing Cartridge WH5 WH10 WH1134
1 x	FK-53, Replacement Filter Pack SED2005 CB2010 for RD322 RO260
1 x	213, 5th stage inline carbon postfilter (replace every 12months)
1 x	755, Aquatec Demand Delivery Pump 5851-7E12-J574 Increase Output
3 x	Parts, Ro Water System Installation Parts Bag 1/4"
3 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	FPK, 6 pcs Fitting Pack Union Connector 1/4" quarter inch
1 x	KF310UP, SUBSTITUTE/Upgrade to KYTON FAUCET POLISHED CHROME FINI
1 x	MKP, Maintenance kit for K5150P K6150P AR150P
1 x	SV-110AC-14, Solenoid Valve 1/4" plastic 110VAC ESO
1 x	TMR-DC-2412, Transformer Power Supply for #752 Booster Pump
1 x	720, Feed Water Adapter with Needle Valve
1 x	OPTIONAL: 567 Filter Housing Wrench Case Opener WHOLE HOUSE WH
2 x	350UP, Upgrade Kit TFC50 gal/day (includes US membrane filter)
1 x	.AR150P, AQUARIUM & DRINKING 2 OUTPUTS Reverse Osmosis RO+DI+P
1 x	PSW-380 Aquatec Pressure Switch 80 psi shut off 3/8" tubing TSO
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR122
1 x	PSW-360 Aquatec Pressure Switch 60 psi shut off 3/8" tubing TSO
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
1 x	SC208, Specialty Filter Iron Lead and Heavy Metal Removal Filter
1 x	KF612UP, SUBSTITUTE/Upgrade Faucet Oil Rubbed Bronze Fisnish
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
1 x	Discontinued RO585NTF
1 x	O-RING FOR WH10 WHOLE HOUSE SYSTEM HOUSING BIG BLUE 10" CANISTER
1 x	DI210, Heavy-duty DI system for Aquarium and Reef
1 x	2.CB2010, 2nd stage carbon block filter 20" inch for RD322 RO260
1 x	290, CB2010BB Big Blue 20" Carbon Block Filter WH20 WH250 WH2201
1 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	.K6NTF KoolerMax K6ALK RO shell without tank and faucet
2 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	TMR-AQT-68, Transformer Power Supply Aquatec TACS114-19EP for 68
1 x	Optional 5th or 6th Stage upgrade inline DI filter(color change)
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	PSW-3100 Aquatec Pressure Switch 100 psi shut off 3/8 tubing TSO
1 x	Discontinued RO585ERP
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	213, 4th stage inline carbon filter (replace every 12 months)
1 x	BUNDLE PACK Annual Filter Kit FK4 WaterGeneral 585 106 (4 ITEMS)
1 x	EMT-10, Empty Filter Cartridge Casing Housing
2 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	316UP, Upgrade for CTA20 gal/day (includes US Membrane filter)
1 x	FPK, High Quality Fitting and Connector 3/8" (Value-Pack)
1 x	CDP6800T110V, AQUATEC Booster Pump Transformer 6840-2J03-B224
1 x	B2010, 20" Big Blue Filter Housing Cartridge WH20 WH25 WH250
1 x	IM60, Ice Maker or RV Water Filter, Inline Typle
1 x	213, 5th or 6th stage inline carbon filter (replace in 12 mons)
1 x	HK120-P-220V KoolerMax Aeroponics Hydroponics RO + Booster Pump
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	.RO260 Aquarium 300G REVERSE OSMOSIS AEROPONICS HYDROPONICS RO
1 x	DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
1 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR125

View Cart	$5,234.90