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	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	578, TDS Water Quality Meter tds-3
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	SC209, Specialty Filter Nitrate Removal Filter
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
3 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	SC435, Specialty Filter Arsenic / Fluoride Removal Filter
2 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x	FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
2 x	752, DC Booster Pump w/ Transformer
1 x	UU Clips Pair from Bracket to Membrane Filter
2 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x	DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x	PE Tubing Tube Cutter
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x	799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
3 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x	720, Feed Water Adapter with Needle Valve
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x	773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve

View Cart	$6,766.92

1 x	Optional: 566 Filter Housing Wrench Opener WaterGeneral System
1 x	578, TDS Water Quality Meter tds-3
1 x	532wpg, PAE RO water pressure white tank bladder gauge valve 4G
2 x	3rd stage C10 carbon block filter (replace every 6-12 months)
1 x	KM701, Special Koolermax Filter Housing Canister Casing 1/4 FPT
2 x	2nd stage C10 carbon block filter (replace every 6-12 months)
1 x	SC209, Specialty Filter Nitrate Removal Filter
1 x	Special, Output Conversion Kit Convert from 1/4" to 3/8"
1 x	PSW-240 Aquatec Pressure Switch 40 psi shut off 1/4" tubing TSO
1 x	578b, TDS-3 Battery Batteries for #578 TDS Water Quality Meter
3 x	818, DI Resin Refill Bag 16oz (good for up to three refills)
1 x	205, 3rd stage solid carbon block filter (replace every 12month)
1 x	RF62, Replacement filter for CT-6000, UC7000, SW-1, and SW-1C
1 x	6th Stage pn215 Refillable inline DI filter (color change)
1 x	531, PAE RO Storage Pressure Osmosis Water Tank Container 3G
1 x	NM-5001C, HONEYWELL COUNTERTOP WATER FILTER DISCONTINUED SW1
3 x	532w, PAE RO Storage Pressure Osmosis Water Tank Container 4G
1 x	Annual Filter Kit Koolermax Series KPAK-4 Sediment Carbon Block
2 x	752set, DC Booster Pump Transformer Solenoid Pressure Switch All
1 x	759, Aquatec Demand Delivery Pump 5853-7E12-J524 Commercial 1.7G
1 x	FM40, STEEL BRACKET DOUBLE HOUSING 10" STANDARD
1 x	FV-14, Bobby Float Valve Side Mount RM292-12-N NSF USA
1 x	KT-103, Optional Manual Membrane Flush Valve
1 x	SW SHELL, Countertop SW1 Empty System Only No Filter
1 x	5th or 6th Stage IC21 inline carbon filter (every 6 to 12 mons)
4 x	Optional: 564 Membrane Filter Housing Wrench Opener
1 x	4th stage TFC150 US membrane filter (every 2-3 yrs)M150 P/N3150
1 x	SC435, Specialty Filter Arsenic / Fluoride Removal Filter
2 x	225UP, 5th stage Inline Alkaline upgrade (includes media)
1 x	Optional 566 Filter Housing Wrench Case Opener KoolerMax System
1 x	671C, Replacement UV Lamp Light for 609C (16 Watt)
1 x	FM60, STEEL BRACKET TRIPLE HOUSING 10" STANDARD FOR RO MOUNT
1 x	UU Clips Pair Membrane to Membrane, 2.5" to 2.5"
2 x	752, DC Booster Pump w/ Transformer
1 x	UU Clips Pair from Bracket to Membrane Filter
2 x	673, Replacement UV Lamp Light for 602 (6 Watts)
1 x	SET88 Aquatec 8852 AC Booster pump Solenoid ESO Pressure Switch
2 x	MK800, Maintenance kit for AR122, AR125, HK120, RD150, RO155
1 x	FM10, STEEL BRACKET SINGLE HOUSING MOUNTING SYSTEM
1 x	DM-1, Inline Dual TDS monitor (meter) for RO DI System DM1
3 x	Wrench 2 pcs 566 Standard Filter Housing Opener Double Better
1 x	Conversion Kit, Convert Aquarium to Drinking RO Water System
1 x	SC412, Water Softening Filter Calcium Magnesium Hardness Removal
1 x	701, FH1014 Filter Housing Chamber Casing White Color 1/4 FPT
1 x	CPR-150G, Pressure Regulator with Pressure Gauge (0-125 psi)
2 x	SV-24DC-38-Plastic, KSD Solenoid Valve 3/8" 24V DC ESO
1 x	PE Tubing Tube Cutter
1 x	SET68, AQUATEC 6840 AC Pump Set Solenoid ESO Pressure Switch SET
1 x	UC SHELL, Honeywell UC7000 Empty System Only No Filter
1 x	UU Clips Pair Standard Filter to Standard Filter, 2" x 2"
1 x	581, Ice Maker Hookup Kit Connect RO water to Fridge Ice Maker
1 x	Special, Single Stage Housing Bracket Shell Connection Kit
1 x	TMR-UV-6W, Replacement UV Ballast Transformer 6 Watts for 602 UV
1 x	799, Siphon Pump Drinking Water Liquid Fluid Oil Manual Trasfer
1 x	Y3414CH, Garden Hose Y Adapter Shut-Off Valve Metal Construction
1 x	Optional 225UP 5th stage Inline Alkaline upgrade(includes media)
1 x	SC445, Specialty Filter SPECIAL ALKALINE FILTER Specialty Filter
1 x	ACT-820-JG Aquatec Pulsation Dampener Accumulator Pressure Tank
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle RD150
1 x	205 2nd stage solid carbon block filter (replace every 12 month)
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	Annual Filter Kit Koolermax Series KPAK-3 Sediment Carbon Block
1 x	FK-BB20M3, Special Big Blue Filter Pack Bundle for WH350 WH-350
3 x	1st stage SF05 sediment filter (replace every 6-12 months)
1 x	FM90, STEEL BRACKET SINGLE HOUSING MOUNTING BIG BLUE WH SYSTEM
1 x	701C, FHC1014 Filter Housing Chamber Casing Clear Color 1/4 FPT
1 x	PSW-350, Pressure Switch for RO Booster Pump 1/4" TSO
1 x	733, Built-in Pressure Gauge 0 to 150 psi for Koolermax RO syste
1 x	CP-OR35+701 O-RING FOR WATERGENERAL BOTTOM FILTER HOUSING CASING
1 x	PSW-260 Aquatec Pressure Switch 60 psi shut off 1/4" tubing TSO
2 x	532b, PAE RO Water Storage Pressure Osmosis Tank Container 4G
1 x	215, 5th or 6th Stage Refillable inline DI filter (color change)
1 x	SC725, Specialty Filter Chloramines / Hydrogen Sulfide Removal
1 x	Special Filter Kit Koolermax dealer distribution kit
1 x	PSW-340 Aquatec Pressure Switch 40 psi shut off 3/8" tubing TSO
1 x	FK-BB10K3, Big Blue Filter Pack Bundle for WH-1030 Whole House
1 x	KM701C, Special Koolermax Filter Housing Canister Casing 1/4 FPT
1 x	602, UV Ultra Violet Sterilization Light Bulb ystem (6 watts)
1 x	202,1 MICRON Sediment filter (replace every 6-12 month) SED1001
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle HK120
1 x	Value Pack- Entire 3 Years of Replacement Filters Bundle AR150P
2 x	SC227, Specialty Filter Refillable Color Changing DI Filter 20"
1 x	565, Digital Pressure Gauge Tester Monitor
1 x	UU Clips Pair Membrane to Filter, 2.5" to 2"
1 x	201, 1st stage sediment filter (replace every 6-12 months)
1 x	Y3414BR, Garden Hose Y Adapter Shutoff Valve Brass Construction
1 x	FV-15, Bobby Float Valve Top Mount RM292P-N UNS CEL NSF USA
1 x	WSACF-150T, Whole House Water Treatment ACF-150T
1 x	MK300, Maintenance kit for RO535, RO435, RO545, AR104H
1 x	FM-8100T, DigiFlow Digital Water Flow Rate Meter 56" cable
1 x	KF612, Elite Series: Oil Rubbed Bronze ORB Drinking Water Faucet
1 x	720, Feed Water Adapter with Needle Valve
1 x	2542-K, Female Connector 1/4 OD 1/8 FNPT Compression Fitting
1 x	CP-KOR45, O RING FOR KOOLERMAX BOTTOM FILTER HOUSING CASING
1 x	773, AC Booster Pump Assembly Large 150-200GPD RO systems SET
1 x	HK120 KoolerMax Aeroponics Hydroponics 150G RO Filtration System
1 x	SVkit, Pump Shutoff Switch Kit for Aquatec Booster Pumps ESO TSO
1 x	709C, Disc Shape Auto Shut Off Valve 4-way Four Way Valve

View Cart	$6,766.92