“Good product for removing air from hot water heating system. Durability may be an issue as sometimes they will stick and fail to remove air. But overall it work well and doesn’t let water spray out everywhere”
“I installed this at the junction point of the feed manifold from my boiler to all the zones in my house, a direct replacement of a failed automatic bleed valve. This Taco 400-4 works like a charm. Upon refilling of the system, it immediately started hissing, which is good. Overall it took about 20 minutes to purge all the air out of the system. Very impressed. The material, construction and heft of this Taco 400-4 is quite good.”
“Excellent quality, same as original on my furnace. Very good price. Be very careful when replacing yourself, make sure water pressure is released & no HOT water in furnace or you will get burned.”
“These seem to start leaking water after some time but this model has been good for the past few months. Will keep watching but boiler is much quieter now.”
