GCTek Rhino Pond Bottom Drain
The Rhino Bottom Drain is what GC Tek calls the toughest and strongest bottom drain you can buy, which matters at the depths koi ponds are built to today. Rhino drains are designed to make installation easy: a wider machined flange gives the installer a greater margin of error when cutting the liner to fit the drain.
• Rhino 1: Standard drain in 2″, 3″ or 4″.
• Rhino 2: 4″ drain, with or without an air diffuser.
• Rhino Retro: 2″ or 3″, with or without air, for retrofitting existing ponds.
• Wide Machined Flange: More room for error when cutting the liner.
• Replacement Air Diffusers: 9″ and 12″ diffusers available.
• Larger Drains on Request: Rhino 2 6″ industrial drain with air and Rhino Multi drains in 2″, 3″ and 4″. Contact us for pricing.
Rhino 2 Bottom Drain With Air, Rhino 1 or Retro?
Rhino 1
The standard Rhino drain for new ponds, in 2″, 3″ or 4″.
Rhino 2
A 4″ drain offered with an air diffuser for an aerated bottom drain, or without one.
Rhino Retro
For adding a drain to an existing pond. 2″ or 3″, with or without air.
Koi Pond Bottom Drain Sizes and Options
| Model | SKU | Pipe Size | Air Diffuser |
| Rhino 1 | RHINO1-2 | 2″ | No |
| Rhino 1 | RHINO1-3 | 3″ | No |
| Rhino 1 | RHINO1-4 | 4″ | No |
| Rhino 2 | RHINO2-4-AIR | 4″ | Yes |
| Rhino 2 | RHINO2-4 | 4″ | No |
| Rhino Retro | RHINORETRO-2 | 2″ | No |
| Rhino Retro | RHINORETRO-3 | 3″ | No |
| Rhino Retro with Air | RHINORETRO-2-AIR | 2″ | Yes |
| Rhino Retro with Air | RHINORETRO-3-AIR | 3″ | Yes |
| Replacement Air Diffuser | RHINO-DIFF-12 | 12″ diffuser | Diffuser only |
| Replacement Air Diffuser | RHINO-DIFF-9 | 9″ diffuser | Diffuser only |
Rhino 2 6″ industrial drains with air and Rhino Multi drains (2″, 3″, 4″) are available by request. Contact us for pricing.
Rhino Replacement Air Diffuser Sizes
Replacement air diffusers come in 12″ and 9″. GC Tek lists the 12″ diffuser with the Rhino 2 drains and the 9″ diffuser with the Rhino Retro drains. Send us your drain model and we will confirm the right size before you order.
What Comes With a Rhino Aerated Bottom Drain or Standard Drain
- Rhino drain in the model and pipe size you choose
- Air diffuser on the Rhino 2 with air diffuser and Rhino Retro with Air versions
Before You Order a Bottom Drain Air Diffuser or Drain
- Match the drain size (2″, 3″ or 4″) to the pipe you are running to your pump or filter.
- Building a new pond? Choose Rhino 1 or Rhino 2. Adding a drain to an existing pond? Choose Rhino Retro.
- Air diffusers run on an air pump, sold separately.
- Need a 6″ industrial drain or a Rhino Multi? Contact us for pricing.
- Not sure which drain fits your build? Contact us with your pond depth, size and plumbing and we will help you choose.
- FREE Shipping via FEDEX, LTL Ground, & UPS. Ships in 2-3 Business Days.
- Ships Only to Lower 48 States of the United States
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