Spirotherm 1/2" NPT brass Spirotop air release valve with a maximum working pressure of 150 psi and a maximum operating temperature of 270°F. The Spirotop VTP has a unique "dry" vent design that helps prevent the system fluid from reaching the spring actuated seat and seal assembly, which is the cause of most conventional air vent failures.

Spirotherm Spirotrap TDN Junior series 1" NPT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 1" SWT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 1-1/4" NPT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 1-1/4" SWT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 1-1/2" NPT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 1-1/2" SWT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 2" NPT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirotrap TDN Junior series 2" SWT brass dirt separator with drain for residential and light commercial applications.

Spirotherm Spirovent VDR Junior series 1" NPT brass combination air eliminator and dirt separator for residential and light commercial applications.