This Foam Replacement Piece is for the MVE Protective Shipping Container for MVE 4/2 and 4/2V Vapor Shippers mushrooms. This Foam Piece is a replacement for the bottom only. Part Number 21476224/FOAM 1.7# POLYETHYLENE BOT WJ, 1"THK X 6.25"R
Look at PN 21369757 One Piece Replacement Foam Insert if you need replacement pieces for the sides of 4/2V vapor tank mushroom covers