Hydro Flask Standard Red Water Bottle 18 21 24 OZ Piper Cover - Spare Piper Cover, Piper Standard Rids. Pipette lid Hydro Flask (compatible bottle) 18 21 24 War for a water bottle with standard mouth. Pipe with a perfect sports cover. Pipette spare covers - for Hydro Flask standard -rim bottle (18/21/24 OZ), for the Simple Modern ascent (12/16/20/24/32/64 OZ), Klean Kanteen Classic Bottle (18/27/40/64 OZ). Not for other bottle brands. Great value - long pipettes must be cut to comply with the compatible bottle size. It contains 2 separate pipette and 1 pipette brush. Reminder: Pipetan lid for only Hydro flask standard mouth water bottle is not for any wide mouth, not for cups or bottles. Easy to use - one -hand use, great for sports, easy to use, turn up to open, easily sip and for. Soft pipette mouthpiece, excellent sports cover, spare pipette wonderful covers. BPA does not contain - VGHNQ is stable about high quality accessories for a specific brand sports water bottle. The pipette cover is specially designed for Hydro Flask standard -rim water bottle.