Abstract: A lightweight deflating rectangular bag made of a leak and puncture resistant mattress film with a plastic two-way valve for lowering of caskets for entombment in below-floor level “Westminster” crypt locations. The deflating bag is configured to lower a casket, in a safe, dignified, and simple manner, into a subterranean crypt for final entombment, while family members, relatives, and friends observe during this important moment in the funeral service.