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CTD Check Valve Kit $40.44

Check Valves

Product Details
CTDCHECK - CTD Check Valve Kit

Found under the following brands: Conrader

Check Valve Kit includes our most popular (2) compression fitting style check valves:

  • CTD1212 - (1/2" Comp x 1/2" MPT) and
  • CTD3812 - (3/8" Comp x 1/2" MPT).

Both have an optional 1/8" unloader port on the hex section.

Does your air compressor fill up the tank and when it tries to restart, it stalls and then “kicks” the electrical breaker? Does your on/off pressure switch leak from the small unloader valve (on the side or bottom of the switch) after it cuts off, and then continues to cycle on/off? The check valve is one of the most common parts that fails on a compressor and replacing it should rectify these problems. It is a one-way valve that lets air in (but not out), of the tank. Usually there is a diaphragm or a ball and spring inside the valve, and it’s easy for debris and rust to form build-up which will cause the valve to stick open. A new check valve can solve multiple problems at once.

Select quantity:

Save Money When You Buy Two Or More!

Buy an extra CTD Check Valve Kit to have a backup if it breaks in the future now before the manufacturer discontinues this. Not only will you save money on shipping by buying an extra one now, you'll now also receive a special quantity discount.

Buy two for a 10% discount!
Buy three for a 15% discount!
Buy four or more for a 20% discount!
Buy six or more for a 25% discount!


This item fits the following models:

CTD Compression Fitting Style Check Valves - CTD Compression Fitting Style

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