Flat Plate Assembly's
made of lightweight cast aluminum plate. Both the 38" and 44" plates have 3/4" of closed cell foam bonded to the plate. The soft closed cell pad makes it easy to get a vacuum seal and yet durable enough to be used over and over. The plate seals on either the manhole frame or the top of the manhole concrete structure. Both assemblies include all of the valves, gauges and fittings to complete your test.
SUPER -VAC 123-05 SOLD SEPARATE. YOU CAN FIND IT UNDER Vacuum Testing Equipment & Accessories