Round Storm Water Manhole Security Locks work independently below existing frames and covers and are cut to fit your existing manholes. Round Storm Water Manhole Security Locks help prevent dumping of contaminants and hazardous toxic materials such as PCB’s into manholes and blocks grease dumping. Reduces or eliminates overflow where surcharging is a problem. Use in conjunction with retangular storm inlet metering and SSO/CSO control. 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. Small holes in inner cover to drain standing nusiance water are standard however can order without holes.
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 manhole to hang up each time it is accessed and closed.
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.