1 1/8" BEADED BRASS CHECK RING. 
1 1/8" (inside measurement) Beaded brass plated check ring. 
 
It measures 13/16" across the top (bead to bead). 
It has 3/8" hole (works with 1/8 IPS pipe). 
$2 minimum charge orders less than $20. 
$.50 packing charge for each parts box.