Watts RK 919-CK2 1 - Part of the RK-919 Series roof-hatch-finder geogrid and erosion control products

geogrid and erosion control products in place

and a 12¾″ × 12¾″ square adjustable top fitted with a heel-proof ductile-iron grate

an adjustable square stainless steel heel-proof strainer

The herbicide used is called Trifluralin and it does not cause any damage to the tree or to tree root growth in the areas not next to the nodules

Adjustable underdeck clamp for secure below-deck support

Watts RK 919-CK2 1 - Part of the RK-919 Series roof-hatch-finder geogrid and erosion control productsThis second check repair kit provides all the parts necessary to repair or replace the second check on a 1 inch reduced pressure zone assembly backflow preventer, model 919. This kit consists of the check assembly, spring, and cover O ring. Features Factory replacement kit No special tools required for servicing All parts are made of high quality materials Serviceable in the field Specifications Compatible Series or Model LF919, 919 Compatible Size