Automatic Water Feeder Attachment for PCO 1881 PET Bottles

A real thing, made fresh for you when you order.

Product pictures are made from the 3D model, not photographed.

$42.99

Plus $7.95 flat shipping to US addresses.

The maker says it fits: PCO 1881 standard PET bottles. See the proof

Color: Gray

How many

Made to order. We print it in the USA after you buy, so print time comes before ship time.

Flat $7.95 shipping. Made in the USA. Broken or wrong? Send a photo within 30 days and we reprint it.

What it does

Threaded fitting made for PCO 1881 standard PET bottles
Turns a spare bottle into a water dispenser for your pet
Extra support rim built into the base for a full bottle's weight
Check your bottle's thread shape so it fits before use
Made to order in the USA after you place your order

Automatic water feeder attachment sits on top of a standard PET bottle and turns it into a water dispenser for your pet. You attach it to a PCO 1881 threaded bottle, so a bottle you already have becomes a simple water source for your cat or dog.

This version has a support rim built into its base, made for use with full bottles. The thread is cut to match the PCO 1881 standard found on many common PET bottles, so check your bottle's neck shape before ordering.

The piece was modeled in CAD as a fitting that pairs with a bottle you supply. It gives an everyday bottle a second use as part of your pet's water setup.

590 downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What it fits

The maker says it fits: PCO 1881 standard PET bottles

That is the maker's word, not a fit we measured. Check the size below against your own.

PCO 1881 standard PET bottles (model PCO 1881)From the maker's own listing notes, checked 2026-08-13. See the original post

Brand names here only say what this part fits. We are not connected to those companies, and they did not make or check this part.

How big it is

Size: 219 × 77 × 151 mmabout the size of a water bottle
Made: In the USA, printed when you order

Sizes come from the real model file, not a guess.

What you get

One printed piece, in the color you pick.
Nothing else to buy. It works as it arrives.

What it is made of

PLA, printed in one solid color. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.