modular marine

New never used Modular Marine 1800 gph LOW PROFILE Overflow Box External box is 9" tall, no drain holes drilled in the bottom of the box yet for bulkheads so you can use whatever size/drain setup you want with this one. $120 shipped SOLD

Modular marine 1800 gph I used on my 250 gallon tank before I ordered a new tank comes with everything you need even the template with the glass bit. The overflow box comes with 1 1/2 drains I reduced it to 1in and had 2 return pumps and it ran silent. If you want to go back to 1 1/2 you'll need...

1800gph Modular Marine bean animal overflow box in good condition. Link to specs from website below. I would recommend replacing the gaskets since they're about 5yrs old and getting a little brittle. There's also 1.5" pvc glued into the three drain bulkheads but it's trimmed such that you can...

Tidal 55 Filter $35 Sicce 2.0 $50 Modular Marine Overflow w/accessories $50 (Sold) Marine Pure Media $20 (Sold)

Hi this is 50 lowboy first start today it was fine I turned off the return pump restarted and didnt want to purge air. Can someone help me know why? Siphon primary is the lowest in overflow, drain in sump is less than 1” deep, even when I had it 2” deep it worked but on restart it didnt purge...

Looking for EMS or Modular Marine overflow, and wanted to see in case someone has one for sale, before I buy it from vendor. Would pay for shipping if deal makes sense. Please let me know if you have one that you are looking to sell Thanks

When making a Durso, why is it: Pipe - Tee - (Middle) - street ell - (Top) - cap and drill hole in cap And not just Pipe - Street Ell and drill hole in top of street ell? I have a modular marine 3000gph low profile overflow. When trying to follow for what height to set my Durso, with the tee...

Hello All, I've always wanted to make a thread to track the journey of a new build but never had anything cool enough to show off until now!!!! I would like to introduce you to the 100% custom drop off. The tank was finally delivered the beginning of Dec. after a few months of waiting and...

Hello all! Hopefully the title is catchy, unlike this build thread... I promise this won't start out all that rad :) So where do I start? I usually approach things with the end in mind as that's a recipe for success in my job, but this is for fun so we'll pitch that book in the trash to...

I recently purchased a Marine Modular 800gph overflow box (top-view of outer box pictured below). It has three 1/2" drain holes that fit 1/2" uniseals. I will these for a bean animal overflow on a 32g display and a 20g sump. I realize now, however, that the 1/2" drain holes are considered...