Compression Testers

Compression Testers check cylinder compression from 0 to 300 psi and features an air-hold valve to reset gauge. One piece stepped brass end fitting with O-rings fits 14mm and 18mm spark plug threads. Easy to read dial is encased in a metal housing surrounded by an anti-shock rubber cover. A quick release coupler connects the included flexible hose to the gauge. Spark Air Hose Adapters are also available.