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Brass pipe adapter with 1/4 inch FNPT and 1/8 inch MNPT connections for various fluids.
$5.99

Brass Pipe Adapter 1/4 inch FNPT x 1/8 inch MNPT (fuel, water, air, oil, gas)

Brass pipe adapter with 1/4-inch female NPT to 1/8-inch male NPT threads. Versatile fitting suitable for fuel, water, air, oil, and gas connections...

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$5.99
Brass hex nipple pipe fitting with 1/2 inch male NPT threads on both ends
$15.00

Brass Pipe Fitting, Hex Nipple, 1/2" x 1/2" NPT Male Pipe

Premium 1/2 inch Close Nipple Brass Pipe Fitting with NPT male threads, engineered for secure and leak-free connections. Perfect for air, water, ga...

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$15.00
$60.92

Brush (Set) March, 809 High Speed

Replacement brush set for March 809 high-speed circulation pumps used in Aqua-Hot and Hydro-Hot hydronic heating systems. Motor brushes wear over t...

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$60.92
Buck Boost Card Replacement Kit with fan side components and connectors.
$158.63

Buck Boost Card Replacement Kit Fan Side ELE-400-021

$158.63
$65.12

Buck Boost Replacement Kit

$65.12
Buehler C20 pump retrofit kit for aqua-hot and hydro-hot circulation and pre-heat systems
$219.99

Buehler C20 Pump Retro Fit Kit 400/450 - PLE-100-905-FRU

These new style pumps are used on all new aqua-hot and hydro-hot systems. This can be used as a circulation pump, stir pump & engine pre-hea...

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$219.99
Metal pump bracket with mounting holes, designed for Buehler C21 model.
Save $0.12
$3.89
$3.77

Buehler C21 Pump Bracket PLX-100-836

Pump mounting bracket (PLX-100-836) for the Buehler C21 circulation pump used in Aqua-Hot hydronic heating systems. Secures the pump in the correct...

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$3.89
$3.77
Save $0.12
Buehler C21 Pump PLX-100-900 with a compact design and control panel for fluid transfer.
$152.90

Buehler C21 Pump PLX-100-900

Buehler C21 circulation pump (PLX-100-900) for Aqua-Hot hydronic heating systems. This pump circulates heated coolant through the system's zones, c...

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$152.90
Buehler pump assembly with harness featuring a compact design and durable materials.
$166.82

Buehler Pump Assembly with Harness - PLE-100-901

$166.82
Clear, flexible Tygothane polyurethane tubing, 5/16 inch diameter, 7/16 inch outer diameter.
$6.76

BULK Tygothane®, Unbraided Polyurethane Tubing 100ft, 5/16 inch D, 7/16 inch OD (SOLD BY FOOT)

Tygothane® unbraided polyurethane tubing, 5/16-inch ID x 7/16-inch OD, sold by the foot from a 100-foot spool. Used in Aqua-Hot and Hydro-Hot syste...

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$6.76
A Burner Controller Card ELX-375-025 with various electronic components and connectors.
$246.45

Burner Controller Card for Aqua-Hot – ELX-375-025

OEM burner controller card (PCB) for Aqua-Hot RV hydronic heating systems. This board manages burner ignition sequencing, flame supervision, and sa...

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$246.45
Plastic threaded plug for pipe fittings, size 1/4 NPT, made of PE-HD material.
$0.45

Caplugs 99390174 Plastic Threaded Plug for Pipe Fittings. P-28, PE-HD, to Plug Thread Size 1/4 NPT",

Plastic threaded plug (P-28) for 1/4-inch NPT pipe fittings. Used to cap off unused ports in Aqua-Hot and Hydro-Hot hydronic heating systems during...

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$0.45
Plastic threaded pipe plug Caplugs P-48 in black, fits 1/2 inch NPT thread size.
$1.25

Caplugs 99390176 Plastic Threaded Plug for Pipe Fittings. P-48, PE-HD, to Plug Thread Size 1/2 NPT",

Plastic threaded plug (P-48) for 1/2-inch NPT pipe fittings. Used to cap off unused ports in Aqua-Hot and Hydro-Hot hydronic heating systems during...

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$1.25
Clear 5/8 inch diameter tube hose, measuring 4 feet in length, for overflow applications.
$15.28

Clear Tube Overflow Hose 5/8 inch x 4 foot

Clear 5/8-inch overflow hose, 4-foot length, for Aqua-Hot and Hydro-Hot hydronic heating systems. Routes excess coolant from the expansion tank ove...

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$15.28
Clear flexible tubing, 5/8 inch diameter, 6 feet long, suitable for various applications.
$20.26

Clear Tubing 5/8 inch x 6 foot

Clear 5/8-inch tubing, 6-foot length, for Aqua-Hot and Hydro-Hot hydronic heating systems. Used for overflow lines, coolant routing, and sight line...

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$20.26
Combustion chamber tube gasket designed for specific engine models and low emissions versions.
Sold out
$9.53

Combustion Chamber Tube Gasket HDE-700-205

Combustion chamber tube gasket for Models 375, 400 and 525 and low emissions models AHE-450 AND 600D

$9.53
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Half-inch crimp ring made of durable metal with a smooth, shiny finish.
$0.68

CONS 1/2 in Crimp Ring

The CONS 1/2 in Crimp Ring is designed for secure and reliable PEX pipe connections. Built for durability, it ensures a tight, long-lasting seal in...

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$0.68
CONS Nylatch Plunger model HDX-100-200 with black plastic body and metal pin.
$1.38

CONS Nylatch Plunger - HDX-100-200

Nylatch plunger (HDX-100-200) for Aqua-Hot heating systems. This latch component secures access panels and service covers on Aqua-Hot cabin heaters...

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$1.38
Constant tension hose clamp with a 1/2 inch diameter and metal construction
$1.00

Constant Tension Hose Clamp 1/2 inch CTB-12

1/2-inch constant tension hose clamp (CTB-12) for Aqua-Hot and Hydro-Hot hydronic heating systems. Unlike standard worm gear clamps, constant tensi...

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$1.00
Metal constant tension hose clamp designed for 5/8-inch hoses.
$1.31

Constant Tension Hose Clamp for 5/8" Hose plx-ctb-15

The Constant Tension Hose Clamp for 5/8" Hose (PLX-CTB-15) provides reliable, self-adjusting tension for leak-free sealing in changing temperature ...

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$1.31
Metal constant tension hose clamp with a 7/8 inch diameter and adjustable design.
$4.85

Constant Tension Hose Clamp, 7/8 inch CTB-24ST

7/8-inch constant tension hose clamp (CTB-24ST) for Aqua-Hot and Hydro-Hot hydronic heating systems. Self-adjusting spring design maintains consist...

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$4.85
$24.06

Control Panel Cable - 9m

$24.06
Black Cooper pump harness with adjustable straps and a sturdy metal buckle.
$13.65

Cooper Pump Harness

$13.65
Metal conversion bracket for Cooper to GRI Zone pump, model SME-850-850.
$24.30

Cooper to GRI Zone Pump Conversion Bracket SME-850-850

The Cooper to GRI Zone Pump Conversion Bracket SME-850-850 provides a secure and precise mounting solution when upgrading or converting zone pumps....

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$24.30

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