Frequently bought together:
Description
Check Valve CTB3812 for air compressors. 3/8" FPT x 1/2" MPT with 1/8" FPT side port.
If the small unloader (bleeder) valve on or under your switch leaks constantly AFTER the unit shuts off, replace this part. The check valve is a one-way valve that prevents air from back-feeding from the air tank.
Extra Details
NOTE: For Emglo units, order this check valve if you have the AM39/AM390 "HC2" or AM40 "HC2" models (and "HC4V" without SN# prefix "A").
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- Serving Customers Since 1994: For more than 30 years, Master Tool Repair has been a trusted source for air compressor parts, repair kits, and expert guidance.
- Quality Parts: We stock a wide selection of high-quality OEM and aftermarket parts for all major air compressor brands.
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