Marketing InformationReliably inflate DWV (drain, waste and vent) test plugs with the Test-Tite 83710 steel air pump with gauge. Durably constructed with a steel body, this plumbing air pump has a built-in foot base that keeps the unit steady while pumping. The air-pressure gauge displays easy-to-read results and a thumb-lock disconnect allows for quick attachment and detachment of air inflation hoses. The pump's inflation nose can be easily replaced to suit a variety of applications.