Nu-Calgon Handheld Injection Nozzle 4300-51 – 1/4″ Flare HVAC Flush Tool REM# 6R

SKU: 4300-51

Weight	1 lbs
Dimensions	8 × 8 × 8 in
Condition	New
Manufacturer Part Number	MFG# 4300-51
Brand	NU-CALGON

$77.71

In stock — available to order.

Sold individually. Each quantity ordered is one unit. Kits are one complete kit; products sold by length use the stated length unit.

Same-item volume pricing

Quantity	Unit price	Saving
1–4	$77.71	0%
5–9	$73.82	5%
10+	$69.94	10%

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Nu-Calgon Handheld Injection Nozzle 4300-51 – 1/4" Flare HVAC Flush Tool REM# 6R

Specifications & product details

Nu-Calgon Hand Held Injection Nozzle – 1/4″ Flare HVAC Flushing Tool – MFG# 4300-51This Nu-Calgon 4300-51 handheld nozzle allows for precise and controlled injection of flushing agents into HVAC and refrigeration systems. Designed with an ergonomic trigger-style actuator and a tapered bushing for secure insertion, it connects to standard 1/4″ flare fitting hoses and may also be used with low-pressure nitrogen systems to remove debris from lines.Ideal for:HVAC system chemical flushingAC line set cleaning and coil rinsingNitrogen-assisted purgingMaintenance of mini-split or central systemsFeatures:Precision delivery of flush agentsTrigger-actuated control for one-handed useRugged aluminum bodyCompatible with nitrogen and most commercial flush kitsTapered injection for easy bushing fit

Important Notice – Propane Parts, Accessories, and Regulators

This product, including but not limited to propane parts, accessories, fittings, hoses, valves, and regulators, must be installed and serviced by a licensed professional in accordance with all applicable local, state, and federal codes, regulations, and standards.

The seller assumes no responsibility for the installation, inspection, application, maintenance, or use of this product.

It is the sole responsibility of the buyer to ensure the product is appropriate for their intended application and that it is installed correctly by a qualified individual.

Improper installation, maintenance, or use of propane products may result in serious injury, death, fire, explosion, or property damage.

The buyer accepts all risks, liabilities, and potential consequences associated with the use of this product.

By purchasing this item, the buyer acknowledges that they have read, understood, and agreed to these terms and confirm that installation and use will be conducted by a properly licensed and qualified professional.

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