Profile: PGK, Inc. is a provider of liquid level control products. Our product line includes PGK LA3000 relay controller and LA2000 multi-switch liquid level sensor. Our level controller includes LA2000 20 amp, LA4000 10 amp and LA5000 dual 20 amp. Our LA3000 liquid level controller kit includes fully assembled latching relay controller bonnet, float, snap ring, start switch, stop switch and stop collar.