Rhino - Retro Bottom Drain for 2" Pipe with Air Diffuser

Rhino - Retro Bottom Drain for 2" Pipe with Air Diffuser
Suggested Retail$180.00
Our Price$144.00You save20%
Usually ships the same business day
RHI-RHRET-2A

Product Details

The latest Aquadyne Retrofit Bottom Drain offers a quality innovation for a stable and rugged over the liner bottom drain for those who do not want to install a drain through a liner, or for pre-constructed ponds that do not have a bottom drain. This drain is especially useful for pond and aquatic environments that have pre-existing liner, concrete, or any other situation that would not allow underground plumbing to be installed.

As with all Rhino Drain products, there are no cheap injection molded parts to break on any drains in the Rhino product line. The Rhino Retro Drain is constructed from heavy duty PVC materials and will not damage your pond liner like cheaper products with sharp edges.

Often too late, pond owners discover that their ponds begin to fill with leaves, dirt, and debris that require the ponds to be emptied cleaned and refilled multiple times per year, not to mention having to take care of the fish when they are out of their home, plus upsetting the ecology of the pond. A good bottom drain is the first step in keeping the bottom of your pond cleaner and your pond healthier.

Simply the best bottom drains on the market!



  • Item #RHI-RHET-2A
  • Thicker flanges and liner attachment ring that will not flex or crack
  • All attachments are machine fitted for extra strength with no need for gap filling
  • Easy installation - goes over the liner or on top of concrete
  • All joints are hand welded resulting in more strength than the speed welds used on the similar drains
  • 2" Slip Port and 3/8" Barbed connection for air diffuser
  • Approximate dimensions: 7-5/8" High x 11" Diameter
  • Rhino drains are American made
  • Includes 9" Air Diffuser
  • Air flow should be between 1 & 2-1/2 CFM @ the drain depth
  • Instruction Sheet .PDF



Simply fill the ballast area of the drain with small stone, sand, or other heavy inert material. Then attach a suction hose or rigid plumbing to the side port of the drain and attach to the pump suction line. Place the drain in the center or the deepest part of the pond so that the pump can easily suck up suspended solids and debris from the bottom of the pond. During the winter months, the drain can be easily moved to a more shallow part of the pond leaving the warmer water in the lower parts of the pond undisturbed where the fish collect in colder temperatures.

Keeping solid waste and debris out of your pond is a very important step toward keeping your fish healthy and preserving your own personal sanity with regard to maintaining a cleaner pond.

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Estimated Delivery Date

All of our in-stock products usually ship the same or next business day. The table below will show you an estimated* date your order will arrive. See special notes below

Shipping Method Approximate Processing Time Approximate Shipping Time Estimated Delivery Date
Eco-Saver Shipping 1-3 business days if ordered by 12:00 Noon EST 2-10 Business Days
Ground Service Same to Next day if ordered by 1:00 PM EST 2-7 Business Days
3-day Select Same day if ordered by 1:00 PM EST 3 Business Days
2nd Day Ai Same day if ordered by 1:00 PM EST 2 Business Days
Next Day Air Same day if ordered by 1:00 PM EST 1 Business Day
Next Day Air Saver Same day if ordered by 1:00 PM EST 1 Business Day by End of Day
UPS Standard - Canada Within 24 to 72 hours 5-10 Business Days

* Delivery dates are estimates only and can vary due to backorders, order processing delays, payment information, customs clearance, and various shipping delays that may be out of our control. Please refer to the specific product page which will show additional information, as some items may require additional shipping time or ship directly from our suppliers. After we receive your order, an order confirmation email is sent automatically from within our website which will show stock status for the item(s) on your order. Business days are Monday - Friday with Holidays excluded. When your order ships, we add your e-mail address into the UPS software which will send you tracking information, so you can track shipment status online, anytime! Here is a link to our complete shipping information including a UPS transit map: Click Here