Description Wilger Flow Indicator Assembly | 20460-00 Manifold Feed Column Standard Flow Buna-N Kit Includes: 1-Flow Indicator Body 1-Green Ball 1-Red Plastic Ball 1-Red Glass Ball 1- 1/2" Stainless Steel Balls 2-Lock U-Clips 1-O-Ring Seal 1-Ball Retainer 0.07-2.7 GPM Input / Output Fittings are not Included