Filtrete 16 In. x 25 In. x 4 In. 1000 MPR Allergen Defense Deep Pleat Furnace Filter, MERV 11 Pack options:Pack of 1 Mayhew line-up punches are used

Mayhew line-up punches are used to align the holes through which rivets

Heavy-duty square shank for wrench-assisted turning

%search_data%P-522C

or as a wobble extension when partially inserted in the socket

This NSF-approved valve is constructed from durable PVC material

Filtrete 16 In. x 25 In. x 4 In. 1000 MPR Allergen Defense Deep Pleat Furnace Filter, MERV 11 Pack options:Pack of 1 Mayhew line-up punches are usedOpt for a Filtrete Allergen DefenseAir Filter to transform your central heating and cooling system into a whole home air filtration operation. This no nonsense filter helps capture varying sizes of particles, from the large (lint, pollen, dust and pet dander) to the microscopic (smoke and smog). %search_data%NADP01 4IN 4