Shop and save on the Honeywell VR8304M2501 Single Stage, 24 Vac, Standard Opening, Intermittent Pilot Gas Valve. 1/2 x 1/2". Set 3.5" WC online at PlumbersStock.com. Having proper control over your heating and cooling systems is vital. Make sure you have the right parts. Honeywell manufactures heating and cooling solutions that are both innovative and practical.