This Sale is for one brand new CPR  Retrofit surface skimming Overflow Box (RSS18) for up to 200 gallon Aquarium  .

This is the newest model from CPR with grated wall.  (See photo)

  • Flow rate is determined by the bulkhead you use.  This box can handle 2500+ GPH.
  • 12.5" x 4.25" x 5.25"
  • High Quality Black Acrylic, 1/4"
  • Clean grate, CNC machined
  • High Quality, Hand Crafted by CPR in the USA
Install with Silicone (for Glass or Acrylic Tanks) or Acrylic Cement (for Acrylic Tank only).

Hole sizes for the bulkheads:
3/4" Bulkhead: 1.5" (38 mm) Diameter
1" Bulkhead: 1.75" (45 mm) Diameter
1 1/4" Bulkhead: 2" (50 mm) Diameter
1 1/2" Bulkhead: 2 3/8" (60 mm) Diameter

We also sell Diamond Tip Hole Saw.  Please click DIY under store category on the left side.

** If you do not have experience drilling hole on an aquarium, please go to "youtube" and search for "drilling holes on glass Aquarium".  There are many informative videos which will help your projects. 

Please consider flow rate requirement before choosing bulkhead size: 

 

Assume Gravity to Low Pressure

Bulkhead size

GPM
(with minimal pressure loss & noise)

GPH
(with minimal pressure loss & noise)

1/2"

7 gpm

420 gph

3/4"

11 gpm

660 gph

1"

16 gpm

960 gph

1.25"

25 gpm

1,500 gph

1.5"

35 gpm

2100 gph

2"

55 gpm

3300 gph

2.5"

80 gpm

4800 gph

3"

140 gpm

8400 gph

 

*These rates are with no restrictions such as elbows, valves, sponges and slip screen.  

60 to 70% of above rates are average practical flow rate in Aquarium set up.


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Payment Policy:

  • Only PayPal is accepted and we will only ship to your verified PayPal address.
  • Please pay within 5 days of purchasing of item. If you cannot make the payment within that period, please email us and let us know.

Shipping Policy:  

  • PayPal Confirmed Addresses Only.
  • Items will be shipped within two Business day of receiving full payment
  • We only ship out orders Monday - Friday (all orders placed after 3:00pm PST Friday - Sunday, will be shipped out the following Monday.)
  • Tracking Number will be provided to all US address.
  • Since we are located in remote rural area Express Service (next day) is not available.
  • Tracking is not available to USPS oversea shipments.  USPS will only give confirmation of shipment, not the tracking information once it leaves US.

Returns Policy:

  • You may return items within 14 business days of confirmed delivery. 
  • Shipping cost for returns is paid by the buyer.  
  • Items must be post marked no later than 14 business days of delivery date for a FULL REFUND of item.
  • Shipping Charges will not be refunded.
  • Please contact us ASAP to get return information and RMA number.  We will not accept returns without RMA number.

We are open Monday through Friday 8 am to 5 pm, and closed on national holidays.  We will not be able to answer any questions during non working hours.

 

Thank you for looking. 

 


Combined shipping discount: 

Shipping cost for multiple quantities of same item is already calculated in shipping cost calculator. Put the quantity and you should be able to see the combined shipping amount.
If you are purchasing different items: Please make purchases, do not pay but request for the total with combined shipping discount.  We will send you an invoice with a combined shipping discount.