2-in-1 Bottle Watering Cap

Turn any standard plastic bottle into a versatile watering tool with this 3D-printable 2-in-1 spout system. This ergonomic attachment features two interchangeable nozzles - one for a focused pour and one for a gentle spray - perfect for watering houseplants, seedlings, or outdoor gardens. Just twist, lock, and water your way.

 

This attachment supports bottles using PCO1881 threads, which should be the standard for most beverage bottles worldwide.

Features

• 2-in-1 Twist-Lock Nozzles
  Easily swap between two nozzle types: Straight Spout (precision pour spout) and a Rose Head (shower-style spray), no tools needed.
• Ergonomic Handle
  Balances the center of gravity for a comfortable grip and easy control, even with full bottles.
• Top-Vent Design
  Built-in air vent allows for smoother, glug-free pouring and doubles as a refill port for quick top-ups.

• Standard Bottle Compatibility
  Designed to fit bottles with PCO1881 threads - common on most plastic soda and water bottles.

   

  Straight Spout	Rose Head
  Ideal for precision watering  Perfect for reaching into tight pots, delivering water directly to the base of plants, and minimizing splash.  Great for indoor plants or seedlings that need targeted care.	Designed for gentle, wide coverage.  Mimics rainfall to avoid disturbing soil or delicate leaves Ideal for young plants, moss, or larger surface watering.

 

Notes

• Please wash your bed before printing,  some parts of this model may detach easily. I have added a brim already, but please take extra precautions.

 

Changelog

 

7/5/2025

• I have moved the handle to a different plate in case of failures. 
• From testing, most of the failures come from when the toolhead is going back and forth on the internal solid infill and top surface. I have decreased the speed, do leave a comment if you still experience failures.

15/6/2025

• Added Rose Spout with reduced holes for a more gentle spray
• Cap is still a work in progress, sorry for the wait!

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happy printing :)