Comparison : Item # 7638703, PPF100P2PH, Polyfelt, 100 Micron, Size 2, PL. Hand
Item # 7619344, PPF100P2PO, Element
Item # 7619345, PPF100P2PW, Element
Item # 7619346, PPF10P1PW, Element
Item # 7634413, PPF10P1SSH, PP Felt, 10 Micron, Size 1, SSH