Rabbit Guinea Pig Water Bottle Cover Sizes: 320ml vs 600ml
By Little Pet Warehouse | Published: 2026-10-26
Category: Comparisons
Choosing between a 320ml and 600ml water bottle cover? Compare fit, protection, and value to find the right size for your rabbit, guinea pig, or rat.
Quick Answer
Pick the 320ml cover if your pet uses a Midi Classic Bottle; choose the 600ml cover for the Large Classic Bottle. Match the cover to your bottle size to ensure proper protection and a snug fit.
Why Size Matters for Bottle Covers
A water bottle cover only works if it fits your bottle. The CLASSIC covers are designed for specific bottle sizes—320ml for the Midi Classic Bottle and 600ml for the Large Classic Bottle. Using the wrong size can leave gaps that let sunlight in, reduce temperature regulation, and make the cover slip or bunch up.
Both covers share the same protective benefits: they block sunlight to prevent algae and bacteria growth, and they help regulate water temperature against frost and heat. The key difference is the bottle they fit, not the material or function.
Price and Value: 320ml vs 600ml
The 320ml cover is priced at $2.69 (compare at $3.79), while the 600ml cover costs $2.72 (compare at $4.39). The price difference is minimal, so the decision should come down to which bottle you own. If you already have a 600ml bottle, the cover is a small investment for the added protection it provides.
Trade-Offs at a Glance
- 320ml cover: Fits the 320ml Midi Classic Bottle. Ideal for small pets or when you want a compact setup. Slightly cheaper at $2.69. If your bottle is 320ml, this is the only cover that fits correctly.
- 600ml cover: Fits the 600ml Large Classic Bottle. Better for multiple pets or longer periods between refills. Costs just $0.03 more. If you already own a 600ml bottle, the cover is a low-cost upgrade for water quality.
- Mixing sizes: Do not use a 320ml cover on a 600ml bottle or vice versa. The fit will be loose or too tight, reducing protection and potentially stressing the bottle. Always check your bottle's capacity before ordering.
Product Facts
- Rabbit Guinea Pig Water Bottle Cover For 600ml – Red | CLASSIC: The Rabbit Guinea Pig Water Bottle Cover for 600ml is designed to fit the 600ml Large Classic Bottle and shields the bottle from sunlight, preventing algae and bacteria growth. If you have a large Classic Bottle, this cover ensures a proper fit and keeps water fresher for longer, especially in sunny spots.
Rabbit Guinea Pig Water Bottle Cover For 600ml – Red | CLASSIC - Rabbit Guinea Pig Water Bottle Cover For 320ml – Red | CLASSIC: The Rabbit Guinea Pig Water Bottle Cover for 320ml is designed for the 320ml Midi Classic Bottle and also protects against sunlight, frost, and heat. For smaller setups or pets that drink less, this cover fits the Midi bottle snugly, providing the same protection without extra bulk.
Rabbit Guinea Pig Water Bottle Cover For 320ml – Red | CLASSIC
Which Cover Should You Choose?
Best for
- Owners of a 320ml Midi Classic Bottle who want a snug, protective cover
- Small pets like rats or young rabbits that drink less water
Not for
- Owners of a 600ml Large Classic Bottle—this cover will not fit properly
- Anyone looking for a universal cover that fits multiple bottle sizes
