NOTE: You must have cookies enabled before purchasing products online.
Please enable cookies in your browser settings and refresh this page.

ProSeal XL4 Inject for Home #2100AI-5

Auto Inject, Refrigerant Support Fluids, HVAC

Price/Option: Quantity:

Envirosafe ProSeal XL4 Inject for Home #2100AI-5 Photo - Click to Enlarge

One of our most requested products, Enviro-Safe® ProSeal Xl4 Inject is a small, concentrated, easy inject refrigerant leak sealant. This product is currently available in three sizes: Fractional-1.5 ton system, 1.5- 5 ton system, and 6-30 ton system. ProSeal XL4 Inject is compatible with all refrigerants except ammonia. This product performs best in heat pumps, split and mini- split units, packaged units, microchannel coils, coolers, and commercial units.

Enviro-Safe™ has been producing and packaging sealants for over 17 years. Our Sealant Injector hose was designed and tested during 2013/2014 and has been produced and marketed under private label since the fall of 2014.

Unlike most other products on the market, ProSeal XL4 travels with the gas, which makes it faster, and more effec- tive at finding leaks. ProSeal XL4 Inject will seal most leaks when used according to the manufacturer’s instructions and will seal most small holes located in the A/C condenser, evaporator, fittings, and metal line sets. Sealing leaks will save energy and lower refrigerant emissions.

*DO NOT use in ammonia systems.

Eliminate the tedius, and time consuming process of "pumping down the unit".

Simply Connect and Inject.

Enviro-Safe's ProSeal XL4 Inject is:

  • Concentrated

  • Compatible with all refrigerant, except ammonia

  • Compatible with all oils

  • No need to pump down R410, or other units

  • Large equipment, bulky tools, injection hoses are a thing of the past

For Use In:

  • heat pumps

  • split systems & mini split units

  • packaged units

  • microchannel coils

Enviro-Safe ProSeal XL4 Inject is currently available in three sizes: Fractional - 1.5 Ton unit, 1.5 - 5 Ton units, and 6-30 ton units. 

These items are also available in Bulk:

  • boxed quanitites

  • non-boxed quanitites.

  • contractors pack of 3 is packaged in mylar packing and will include instructions.


Professional Use Only

Instructions for use:

Step 1: Turn the a/c system on, and verify the unit is running. Connect ProSeal XL4 Inject to the low side service port of the system. (This is generally the large line.) 

Step 2: Connect the manifold refrigerant hose to the refrigerant supply tank. Verify the manifold high & low side valves on the manifold are closed before proceeding. Purge the air from the low side.

Step 3: Open low side valve, watch for the tube to clear. (This will ONLY take a few seconds!) Turn off low side manifold valve as soon as the tube is clear. Turn off refrigerant gas. Verify the system is charged to manufacturer’s specifications. Disconnect low side hose from ProSeal XL4 Inject. Install service port cap. Run the a/c unit at least one hour after installing ProSeal XL4 Inject.

Note: Do Not use Enviro-Safe ProSeal XL4 Inject in any manner it was not designed! 

Read and understand the product’s label, Safety Data Sheet (SDS) for precautionary, and first aid information. The SDS is available on the Enviro-Safe website at: 


Customers Also Bought:

R12 R22 R502 Brass 1/4" Service Port Caps Hex Head - Click to Purchase

R12 R22 R502 Brass 1/4" Service Port Caps Hex Head

For more information on this product, click the product title above.

Price/Option: Quantity:

ES R-290 Refrigerant R290 Cylinders Subject to EPA Use Restrictions - Click to Purchase

ES R-290 Refrigerant R290 Cylinders Subject to EPA Use Restrictions

EPA Approved for use in new food refrigerators and freezers (stand-alone units only!) For more information on this product, click the product title above.

*Price/Option: Quantity:

*adult signature required for delivery

*Haz/Mat fee not included.

Dye Inject - Click to Purchase

Dye Inject

Enviro-Safe Dye Inject is the first Dye in a direct inject product. Easy to install.

Price/Option: Quantity:

Newsletter Signup: