Marine Depot offers FREE economy shipping for most products when you spend $39 or more! Your order will be delivered in up to 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 Faster Shipping which speeds delivery to 1-5 days. 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 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 1-2 business using this level of service. 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, oversize/overweight and items shipped directly from the manufacturer do not qualify for this special offer.
$5.99 Flat Rate Shipping For Orders Under $39
Most orders under $39 ship for only $5.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out. Orders placed before 10:30 am PST Monday-Friday are shipped the same day. Our $5.99 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 $5.99 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.
Orders not shipped within the contiguous United States—the 48 U.S. states on the North American continent south of Canada plus the District of Columbia—are considered international orders. International orders are not eligible for Marine Depot’s free shipping promotions and additional surcharges may apply. It is important to note that not all products we carry can be shipped internationally. Any brokerage fees, tariffs and/or taxes will be billed to you directly by the shipping courier. International customers must use the same billing and shipping address.
Coralife Turbo-Twist ultraviolet sterilizers feature a unique twist flow design that guides water flow more evenly through the sterilizer, increasing exposure to ultraviolet light and improving the treatment of unwanted algae and harmful microorganisms.
Features:
Easy set up and installation
Mounting brackets included for hang on or in-line applications
Can be used with freshwater and saltwater aquariums
Models:
3x (9W) - up to 125 Gallons
6x (18W) - up to 250 Gallons
12x (36W) - up to 500 Gallons
Specifications:
3x (9W) - 100-200 gph - 1/2" or 5/8"
6x (18W) - 200-400 gph - 5/8" or 3/4"
12x (36W) - 400-1200 gph - 3/4" or 1"
Warning as required by state law - This product can expose you to chemicals including Mercury and Styrene, which is known to the State of California to cause cancer and birth defects or reproductive harm. For more information go to: www.P65Warnings.ca.gov
Coralife Aquarium Supplies Coralife is one of the market’s leading manufacturers of premium aquarium products. The brand is best known for their comprehensive line of aquarium lights, protein skimmers and calcium reactors. Coralife’s unique line of aquarium accessories—protective gloves for maintenance and coral propagation, accurate and affordable digital thermometers and hydrometers—set Coralife apart from other brands and have created quite a following among aquarium hobbyists. With an ever-expanding and diverse product line coupled with customer support that is second-to-none, Coralife sets the bar high for aquarium supply manufacturers and they will no doubt continue to wow aquarists with their innovative, low-cost solutions for years to come.
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9 Questions
Displaying questions 1-9
Q
I have a 100 gal tank is there such a thing as too much UV lighting if i get a bigger UV sterilizer than the recommended size?
CONS
A bit of thought must go into mourning it appropriately to ensure good flow.
REVIEW
I’ve been using this sterilizer on a 90 gallon freshwater tank for about a year. It was my first time ever utilizing any sort of UV on a tank. I was absolutely amazed with the results! The tank has a fairly high bio load but it has never looked better. The water is unbelievably clear. I’m now qu...Read More
I’ve been using this sterilizer on a 90 gallon freshwater tank for about a year. It was my first time ever utilizing any sort of UV on a tank. I was absolutely amazed with the results! The tank has a fairly high bio load but it has never looked better. The water is unbelievably clear. I’m now quick to recommend this product!Hide
Very versatile mounting, easy to plumb, immediately noticed less algae on glass
Dexter
Sat, May 2, 2020
PROS
Twist helps with contact time. Easy to plumb, easy to mount.
CONS
None.
REVIEW
Bought this to help my hippo tang get through ich mixed with selcon vitamins in his food. He made it through very quickly after adding this. As an added benefit I noticed a lot less algae on my glass. It kills the algae that's water born so it cuts down on the amount in the tank. Same for the ich. I...Read More
Bought this to help my hippo tang get through ich mixed with selcon vitamins in his food. He made it through very quickly after adding this. As an added benefit I noticed a lot less algae on my glass. It kills the algae that's water born so it cuts down on the amount in the tank. Same for the ich. It doesn't kill it if it's on the fish but it kills what's in the water to keep the population down. Highly recommend.Hide
The value for this high of a wattage uv is great! The body is sturdy. My only gripe is the bulb doesnt lock into place well and is pretty flimsy within its cylinder. But, seems to be doing its job.
Great sterilizer, helped control the algae bloom in my 29g nano. Only issue with it is the suction cups are no where near strong enough to stay attached to the tank.
Most orders under $39 ship for only $5.99 using a mix of economy shipping methods including UPS Ground, USPS First Class, and/or SurePost. Your order will be delivered in up to 7 business days after it ships out.
free shipping for orders $39+
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 up to 7 business days. Just spend $39 or more!
free faster shipping for orders $250+
Over 90% of shoppers receive their orders within 1-2 business days. Upgrade from free economy shipping to faster shipping for only $5.99—or spend $250 and we'll upgrade you automatically!
need your order even faster? no problem!
Expedited shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.
buy it today and we'll ship it today
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.
Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!
Earn 5 reward points for every $1 you spend to get 5% cash back Most Products
Earn 1 reward point for every $1 you spend to get 1% cash back Abyzz, American Marine, AquaIllumination, AutoAqua, CoralVue, Digital Aquatics, EcoTech Marine, Giesemann, GHL, Hanna Instruments, Hydor, IceCap, Innovative Marine, Iwaki, Kamoer, Kessil, Klir, Korallen-Zucht, Maxspect, Mur-lok, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, Radium, Red Sea, Reef Glass, Reef Octopus, Seneye, Somatic, Tunze, Vertex Aquaristik, and Waterbox Aquariums
You can also get bonus reward points by purchasing select items during special sales and promotions.
46,020 Reviews. 5,153,553 Products Shipped. #1 Aquarium Supply Store Online.
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