Check the listing for details. Pre-Pitch Extended Kit PPK/EXT-202 Goof Proof Shower 4 Pack. Condition: New. Listed at 38.00 USD. Pre-Pitch Extended Kit (4/pk)No. PPK-202Pre-Pitch™ is a unique, stay in place screeding tool designed for use underneath shower pan liners. The first product to be installed, Pre-Pitch creates the proper sub floor pitch (1/4" per 12" run) needed to direct water flow towards the weep holes that are an integral part of shower floor drains. By having a pitch under the pan liner, water that passes through the mud bed is now directed to the weep holes instead of being trapped between the mud bed and the liner where many mold and mildew related issues originate. The Pre-Pitch sticks have holes in their vertical web which helps to act as reinforcement and are easily cut with a hacksaw, PVC cutter or dry diamond blade. For wood subfloors, Pre-Pitch can be screwed or nailed in place. For concrete subfloors, use two sided tape. Subfloor must be level, sound and properly prepared prior to installing Pre-Pitch.These extended sticks attach to the 7/8" end of the Standard Pre-Pitch Sticks. They are for use in shower areas where the walls are more than 36" (but less than 72") from the floor drain. Sticks measure 7/8" to 1-5/8" taper x 36" long. Sold 4 per package.