Semi-clear 12" plastic tubing with black grommet on one end and stainless steel wire screen on the other end. Jandy part number R0358700. Breather tube for CV series filters.

Breather Tube Assy Rplcmnt. R0358700

$12.99 
SKU: R0358700

This is an OEM Breather tube replacement. 

Fits: CV340, CL340, CV460, CV580, DEL and DEV series filter.