Plumbing valves, namely, shut-off valves, in-line ball valves, in-line vented valves, in-line vented ball valves, axial valves, function valves, flow control valves, miniature fractional exhaust flow control valves, miniature metric exhaust flow control valves, knobless fractional exhaust flow control valves; in-line flow control valves, flow control valves with ultrafine adjustments, pneumatic slow start valves, threshold sensor valves, fractional and metric lock-out valves, pneumatic slide valves; plumbing couplings, plumbing fittings, namely, cocks and valves, and plumbing connectors
Environmental Control Apparatus