Marine Depot offers FREE economy shipping for most products when you spend $29 or more! Your order will be delivered 1-7 business days after it ships out. Economy shipping methods include UPS Ground, USPS First Class, and/or SurePost. You can also upgrade your shipping to UPS Ground which speeds delivery to 1-5 business days. A shipping upgrade is $2.99 for orders under 20 lbs, $3.99 for orders 21-40 lbs, and $4.99 for orders over 41 lbs. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
Free Upgraded Shipping For Orders $250+
Most orders over $250 qualify for FREE upgraded shipping! Your order will be delivered 1-5 business days after it ships out. Thanks to Marine Depot’s two strategically located warehouses in Nevada and Georgia, over 90% of shoppers receive their orders within 2 business using this level of service (UPS Ground). Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Free shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for this special offer.
$2.99 Flat Rate Shipping For Orders Under $29
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in 1-7 business days after it ships out. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Our $2.99 flat rate shipping is only available within the contiguous United States. Frozen foods, live foods, and items shipped directly from the manufacturer do not qualify for $2.99 flat rate shipping.
Frozen foods are delivered 1-3 business days from the day your order ships. Frozen foods are shipped every Monday and Tuesday. Shipping cut-off is Tuesday at 10 am PST (1 pm EST). Orders received after 10 am PST on Tuesday will be shipped the following week. Shipping and handling is a $19.99 flat-rate charge so you can order as much or as little as you like.
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U-tube with Directional Return. Will accept 1/2" or 3/4" (inside diameter) vinyl tubing.
Note: This will not work with neither 1/2" nor 3/4" ball-socket fittings.
**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please be certain the product you want to price match is the same make and model.
Specifications
U-tube with Directional Return. Will accept 5/8" or 3/4" (inside diameter) vinyl tubing.
Note: Not compatible with Loc-Line brand ball-socket fittings and accessories.
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9 Questions
Displaying questions 1-9
Q
Is the U spacing wide enough to fit over eurobracing?
What is the distance between the two pipes?
Yes, the U-tube is suitable for tank rims up to 3" wide.
Answered : Jan 04, 2018
By : Robert, Garden Grove
Q
What is the maximum flow rate?
Hi, I've got this product set up on my aquarium (the larger version) but I'm wondering if you know what the maximum flow rate that will pass through it is? I'd also like to know who the manufacturer is. Thanks
The manufacturer's information on these U-tubes is proprietary. These U-tubes can handle the flow rate from any size pump they are capable of fitting on. They don't have a functional flow rate limit. The flow rate is limited by the overflow drain, not the outlet tube.
Answered : Apr 26, 2018
By : Felicia
A
The manufacturer's information on these U-tubes is proprietary. These U-tubes can handle the flow rate from any size pump they are capable of fitting on. They don't have a functional flow rate limit.
The desciption of this item says it fits 1/2 inch tubing, but mine did not. I could not for the life of me get the tubing around it, so I had to buy a piece of 5/8 inch tubing and a 1/2 to 5/8 inch adapter to allow the connection. The tube is great, just wish I didn't have to spend another $10 to ge...Read More
The desciption of this item says it fits 1/2 inch tubing, but mine did not. I could not for the life of me get the tubing around it, so I had to buy a piece of 5/8 inch tubing and a 1/2 to 5/8 inch adapter to allow the connection. The tube is great, just wish I didn't have to spend another $10 to get it to fit on something it is supposed to fit.Hide
I believe this should’ve come with a suction cup or something to hold onto the side of my tank. I was able to use an old one from an old heater that I had laying around. Other than that it works for my return line. No issues there.
CONS
Soft uneven molded plastic very hard to use clamps, can leak
REVIEW
OK product but very soft uneven plastic, when clamping they collapse allowing water to leak, had to throw one of the two I purchased away. Luckily Marine Depot is sending me a replacement but I’m not going to use these.
CONS
The smaller U-Tube's 3/4" sizing is not accurate. Also need a way to hold it onto the rim of the tank.
REVIEW
I bought return tubing with 3/4" ID and ordered the 1/2 & 3/4 inch U-Tube. I slipped the tube completely over both sized ribbings and even over what I would call the two knuckles above them and tightly clamped over it. It still had a slight seepage around the connection. So I ordered the next siz...Read More
I bought return tubing with 3/4" ID and ordered the 1/2 & 3/4 inch U-Tube. I slipped the tube completely over both sized ribbings and even over what I would call the two knuckles above them and tightly clamped over it. It still had a slight seepage around the connection. So I ordered the next size up, the 3/4 & 1" U-Tube. The 3/4 ribbing on this one was perfectly snug, so much that I had to really exert a lot of effort to get it inside the tubing. This goes to show that the 3/4" ribbing on the smaller U-Tube is not accurate. I would say it's likely probably only 5/8" so if you are using 3/4" tubing be sure to get the larger U-Tube. It didn't affect my return water flow between the two. If not for the incorrect sizing advertised I would give this product at least 4 stars.Hide
This is a great unit for the price of a cup of coffee. Multiple direction capability. Eheim 16/22 fits well on the smaller option, 1/2 inch-3/4 inch. Heavy enough material with enough overhang on each side that attachment to the aquarium not needed. I save money/maintenance by not purchasing che...Read More
This is a great unit for the price of a cup of coffee. Multiple direction capability. Eheim 16/22 fits well on the smaller option, 1/2 inch-3/4 inch. Heavy enough material with enough overhang on each side that attachment to the aquarium not needed. I save money/maintenance by not purchasing check valves as my sump can easily absorb any power off DT water. Presently surprised at the quality at this price point. I would have paid more. Much less bulk(compact) vs DIY PVC return.Hide
Most orders under $29 ship for only $2.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in 1-7 business days after it ships out.
free shipping for orders $29+
We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in 1-7 business days. Just spend $29 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 2 business using UPS Ground. Upgrade from free economy shipping to UPS Ground for only $2.99—or spend $250 and we’ll upgrade you automatically!
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Same-day shipping is available Monday-Friday for most products—place your order by 10:30 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.
live plants, live foods, and frozen foods delivered to your door
We ship live plants, live foods, and frozen foods within the contiguous United States. Each of these categories is subject to its own $19.99 flat-rate shipping fee to cover the special packaging and/or expedited shipping costs required to ensure safe delivery. Orders with 12+ live plants ship free!
Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.
A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.
We are unable to accept returns of Digital Aquatics, Neptune Systems, Vertex Aquaristik, Aqua Illumination (AI), EcoTech Marine, GHL, or Seneye products once the manufacturer's packaging seals have been broken.
Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.
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