Abstract: An improved water filter unit including a casing having a removable snap-type cover with the casing mountable to a surface or free standing. The casing including a plurality of removable different type water filter cartridges, each of which includes a pair of different water filters, connected to a manifold formed in the casing. The casing including a pair of change water filter indicators.
Abstract: A grain door for installation across the doorway of a boxcar wherein a generally rectangular relatively stiff panel equipped with a plurality of horizontal straps is equipped with diagonal fold lines extending from the intersection of the side flap and floor flap fold lines to permit folding the side flaps and the floor flaps ends into overlying relation with the remainder of said panel to facilitate anchoring the straps to the doorway posts.
Abstract: A grain door and method of making the same wherein thin metallic straps having arcuate ends are partially adhesively secured to a double-face corrugated medium, and wherein the straps may be equipped with novel fittings for extension bands and are also adapted for receipt of center braces having horizontally flat tangs.