Marine Depot offers FREE economy shipping for most products when you spend $29 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 UPS Ground which speeds delivery to 1-5 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 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, 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 up to 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.
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.
For automatic replenishment of evaporated liquid on systems which require AC electrical control
Controls up to 3 Amp continuous duty pumps and other 115 Volt power heads
Extremely useful for continuous water change systems & other level control applications
SpectraPure® Power Liqiud Controller uses a sensitive air pressure switch to energize or de-energize an AC outlet, which can be used to switch a power head or a 115 Volt pump up to 3 Amps continuous duty. The unit can be set to turn a pump on or off with changing water level and is extremely useful for continuous water change systems or automated top-off.
SpectraPure Aquarium Supplies SpectraPure was established in 1985 and is located in Tempe, Arizona, home of Arizona State University. SpectraPure is dedicated to excellence in the design and manufacture of water filtration and purification systems for household, commercial, laboratory and light industrial applications. Their product lines includes a full range of systems and equipment, including drinking water systems, water softeners, filtration systems, reverse osmosis units, RO/DI and deionization systems and many other technological innovations and water purification accessories. SpectraPure provides innovative, state-of-the-art solutions to water purity problems and applications.
Ask a Question Earn 15 Points when you answer a question
I have tried a lot of differnt ATO out there and this one has worked the best for me so far.
One mod i recomend is using a probe mount holder instead of the suction cups to hold it in place.
I use this on my 12gal desk top reef tank to keep it top offed. I have a drews doser pump plugged into it ...Read More
I have tried a lot of differnt ATO out there and this one has worked the best for me so far.
One mod i recomend is using a probe mount holder instead of the suction cups to hold it in place.
I use this on my 12gal desk top reef tank to keep it top offed. I have a drews doser pump plugged into it and it keeps the salinity leaves steady.Hide
This product works and fills up to the same spot on the tube every time. The problem is that it takes way too much water level drop to reactivate this thing. My stop point is about 2 1/2" up the tube, and it will not reactivate until the tube literally comes completely out of the water. In m...Read More
This product works and fills up to the same spot on the tube every time. The problem is that it takes way too much water level drop to reactivate this thing. My stop point is about 2 1/2" up the tube, and it will not reactivate until the tube literally comes completely out of the water. In my sump, that equates to almost 10 gallons of evaporation before the thing activates again. That is enough to cause my salt levels to rise from 1.026 to 1.028. It basically comes on every 4 1/2 days for me.
I think I am going to cap off a piece of 1" pvc, drill a hole to fit the sensor tube into, seal it off, and use it that way. The additional air and water surface area trying to rise up the larger pvc tube will cause a higher pressure gradient when the water level changes. I may just not use their air tube at all and make my own pvc tube with air line to the pressure switch.Hide
This is the perfect solution for people that use a small pump to move their RO/DI water from a storage container to their main tank. The controller switch itself is a little difficult to dial in, but once it's in place, it works well.
Purchased this based on other reviews and have watched the level drop a full inch and so far, nothing. Also, I did not receive a new product as pictured on the website. What I received was already assembled in plain plastic bag with no instructions. A bit disappointing.
This product has been working exactly as advertised for a few weeks. I am using it to control the daily transfer of top off water from one container to another. I set it up in about 5 minutes. I switched over to magnetic holders for the tube to make sure it wouldn't come loose and I use a timer as...Read More
This product has been working exactly as advertised for a few weeks. I am using it to control the daily transfer of top off water from one container to another. I set it up in about 5 minutes. I switched over to magnetic holders for the tube to make sure it wouldn't come loose and I use a timer as a backup to avoid a potential flood. The only minor detail is you need some way to mount the black box (I'm using velcro).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 up to 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 up to 7 business days. Just spend $29 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 $2.99—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.
If you find a product we sell for a lower price at another online store, we will match their price to ensure you always pay the lowest amount when you shop with us.
Enter the price, shipping cost and website address where you found the lower price. Then click the "Add to Cart" button. We will review the lower price while processing your order and make any necessary reductions before your order ships. Some restrictions apply. See Terms & Conditions
