Drain-All® LH50-0LAAW WaterHog™ With Window

The Waterhog™ with window, LH50-0LAAW, is a state-of-the-art, low-profile, pneumatically powered zero-loss drain trap ideal for compressed air systems up to 100 hp. Its unique design avoids small passages common on competitor products, ensuring clog-free operation. Waterhog™ is fully automatic, operating with no timer or manual settings. Because this new product is powered by compressed air, there is no need for electrical connections. Waterhog’s™ sleek, low-profile design also fits where competitor products may not. Check with your utility to see if waterhog™ qualifies for energy-saving incentives!



• No timers, works on demand
• Totally air operated
• Save valuable system pressure
• Robust, with few moving parts
• Simple pipe connection
• Special models for all applications


Model #: LH50-0LAAW
Inlet/Outlet: 1/2" NPT
Control Air: 1/8" NPT
Balance Line: 1/8" NPT
Max Liquid Temp.: 170 Fº (76.7 Cº)
Max Liquid Press.: 200 PSIG (13.8 BARG)
Control Air Min: 40 PSIG (2.8 BARG)
Control Air Max: 130 PSIG (9.0 BARG)
Max Flow @ 100 PSIG: 0.1 GPM

Dimensions & Weight

Height in (cm): 7.4 (18.8)
Width in (cm): 8.3 (21.1)
Depth in (cm): 5.9 (15.0)
Weight lbs (kg): 12.0 (5.4)

Note: California residents click here for Proposition 65 information

WARNING: This product can expose you to chemicals including Lead and Lead Compounds which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65Warnings.ca.gov