RAC Paws DIY Auto-Fill Metal Cups Waterer Kit - 6 Pack

In this review of the RAC Paws DIY Auto-Fill Metal Cups Waterer Kit, the bottom line is simple: it is a practical, chew-proof watering solution for small animals and poultry that need steady access to fresh water without constant refills. The kit is aimed at small-farm owners and pet keepers who want a low-maintenance, gravity-fed system; the single biggest reason to buy is the metal auto-fill cups that refill automatically to about 3/4 full, reducing spills and keeping cages and enclosures drier.

Key Features

• Auto-fill action: Cups automatically refill with fresh water each time an animal drinks, maintaining a steady supply without manual topping off.
• Spill control: The cups stop filling when they reach roughly 3/4 full, which helps prevent mess and soggy bedding in cages or hutches.
• Chew-proof metal construction: Metal cups resist chewing better than plastic, offering longer life for rabbits, guinea pigs and other nibbly pets.
• Easy installation: The drinking cup mounts with a 3/8 in drill bit and attaches to containers or racks using included clips and hardware.
• System compatibility: Designed for gravity-fed systems under 3 PSI and works with 5-gallon buckets, PVC piping and common tubing sizes for flexible setups.
• Complete kit: Each package includes six metal cups with elbows, washers, wingnuts, cage clips and instructions for quick assembly.

Who It's For

The RAC Paws kit is ideal for backyard poultry keepers, small-farm operators and multi-pet households that keep rabbits, guinea pigs, chinchillas, ferrets, hamsters, mice or rats and want a robust, low-maintenance drinking solution. It suits setups where a gravity-fed reservoir such as a 5-gallon bucket or PVC line can supply multiple cups reliably.

Owners who require pressurized systems above 3 PSI or who prefer fully plastic fittings may want to look elsewhere, and anyone expecting included tubing should note that the kit does not include tubing; 5/16 in ID and 7/16 in OD tubing or other connectors must be sourced separately.

Pros & Cons

Pros

• Metal cups provide chew resistance and generally longer service life than plastic alternatives.
• Automatic refill behavior keeps water available while limiting overfill and spills.
• Simple hardware and cage clips make mounting and replacement straightforward.
• Kit covers six stations, convenient for multi-animal setups.

Cons

• Some customers report mixed durability for the plastic clips and supports, which may require occasional replacement.
• Tubing and reservoir components are not included, so additional parts are needed to complete a system.

Specifications

Product type	DIY auto-fill metal drinking cups kit
Quantity	6 cups per kit
Fill cutoff	Stops at approximately 3/4 full
Installation	Requires 3/8 in drill bit for mounting
System requirement	Gravity-fed or pressure below 3 PSI
Compatible containers	5-gallon buckets, PVC pipes, tubing 5/16 in ID and 7/16 in OD
Included items	6 cups with elbows, 6 washers, 6 wingnuts, 6 cage clips, instructions

Our Verdict

The RAC Paws DIY Auto-Fill Metal Cups Waterer Kit is a smart, value-oriented choice for small animal and poultry owners who want reliable, chew-resistant watering that reduces spills. It is best for gravity-fed setups and multi-animal environments; expect to source tubing separately and keep an eye on plastic clips for long-term durability, but overall it delivers steady function and easy installation.

Frequently Asked Questions

Are tubing and buckets included?
No. The kit includes the metal cups, elbows, washers, wingnuts and cage clips; tubing and reservoirs such as buckets or PVC lines are sold separately.

Will the cups overflow in a tipped system?
The system must be gravity-fed and operate below 3 PSI; cups are designed to stop filling at about 3/4 full to limit spillage, but unstable mounting can still cause problems.

Are these safe for small rodents and rabbits?
Yes. The metal cups are suitable for rabbits, guinea pigs, chinchillas, mice, rats, ferrets, hamsters and similar small animals and help prevent chewing damage common with plastic cups.