1" SN Diaphragm 

The 286.008.354 is a diaphragm manufactured by Sandpiper. The diaphragm measures 1" SN and can be used as a replacement for various Sanpiper products such as the ET1, HDF1, SB1, and SB2. 

WARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm (For more information go to www.p65warnings.ca.gov).