Foaming natural latex formula, ;environmentally safe, contains no ammonia.  Use to replenish SILCA Ultimate Sealant with Carbon Foam every 90-120 days.  Use of the replenisher may extend sealant life up to 1 year! Replenisher can be used on its own down to 0F/-18C.  It is able to be injected through the valve stem. Comes with rubber hose for easy injection.