Grease Pretreatment Manhole Security Locks work independently below existing frames and covers and are cut to fit your existing manholes or grease interceptors. Grease pretreatment locks help prevent dumping of contaminants and hazardous toxic materials such as PCB’s into manholes and grease traps. Designed for food establishments, restaurants and grocery stores, as well as septic systems, storm and sanitary sewer manholes. Installation takes about 15 minutes, avoiding costly demolition while reinforcing old manhole risers. Locks can be keyed alike to match your agency locks.

Features: Series 300 stainless steel. Patented product includes subring with locking security bolts, and inner cover. Also includes anchor bolts. No holes in inner cover to prevent liquids from entering the pretreatment vault.
Installs in 15 minutes.
One time installation, opens and relocks in seconds, no reinstallation each time.
No demolition necessary
No cables or bars dangling in grease
No hinge or special locking mechanism to seize shut.
No existing frame or ledge or lip required for locking
No special key - use customer padlocks or order Master Palocks keyed alike or keyed the same as your current locks.
Weight: 12 pound cover and 10 pound subring for 24" Diameter.
All Other Sizes and Shapes Available Upon Request.

Contact us at (408) 761-5882 in the USA, for effective manhole security products that are built to last.