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Rhino II Bottom Drain - 4" Pipe with Air Diffuser

Rhino II Bottom Drain - 4" Pipe with Air Diffuser

Product Details

Simply the best bottom drains on the market!

Quality materials and superior construction differentiates the Rhino over other drains. A few of the problems associated with the other drains have been alleviated in the Rhino design including;

  • 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
  • Use with either liner or concrete
  • All joints are hand welded resulting in more strength than the speed welds used on the similar drains
  • 3" height over the horizontal discharge port for more concrete over the horizontal discharge port 
  • Direct pipe connection into the air bladder
  • Rhino air drains contain an air check valve to prevent water entering the air line.
  • Includes Air Disc Diffuser connect with 3/4" fittings (not included) - 3/4" MPT
  • Rhino II Instruction Manual (Adobe PDF 107kb)
  • Rhino drains are American made from high quality materials


The Rhino II air drain is 4" ported, horizontal discharge.



NOTE: Recommended air pump for the diffuser should put out 1.5 - 3 CFM at the bottom drain depth. See below under Recommended accessories for a few possible options. Model you choose will depend on your depth

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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