For Westinghouse WD-12, WD-20, WD-22, WE-10, Cavalier CS-12, CD-20, CD-33 6-Case Master, 10-Case Master or Giants.  Some Cavalier units are also known as CMD-C, CGD-C and CMD-D machines and yes this is the correct gasket.  Enough for one pair of lids - 12'.  Please note: This gasket does NOT typically go on the hinged side of the lids as this is not what the manufacturer did.  However we have seen it on a few (very few machines).  If yours is one of these you will need to order an extra one. 

Larger machines will require 2 gaskets.

MADE IN USA!

To install this gasket...you will need to cut the length you need for the right side, left side, front and back side.  DO NOT cut any for the hinge side unless you ordered an extra gasket.  For the front of the lid you will notice the gasket resembles the letter "Z" with a bulb on one end.  Look close and you will see that one of the legs of the Z is squared off.  This part of the flap goes under the lid liner.  The flap with the bulb on it goes under the lip of the lid when the lid liner is put in place.  Next are the two sides.  This is a bit tricky but with a little patience you will get it.  Take the Z and cut the bulb with the tail off the other part of the Z.  So now you have what looks like a stick man without arms and legs.  Take this portion and shove the tail or body of the stick man between the lid liner and lid.  Put all screws in the lid and you are done with this one.  Make sure side pieces are straight and level with the front bulb to make sure the lid sits flat on the machine.  Repeat for other lid(s).