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 Faster Shipping 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.
Medical-use pinch valves for precise `dial-in` control of soft tubing. Can be used for Calcium Reactors and Kalkreaktor effluent drip control and any CO2 or O3 flow control. Since that valve is external to the tubing, they can never clog.
**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.
Ask a Question Earn 15 Points when you answer a question
Sort By :
9 Questions
Displaying questions 1-9
Q
What size tubing will these accommodate? I need the ones that go from 5/16 to 3/8.
The pinch valve accommodates 5/32" to 1/4" tubing. Please contact our support team at 714-385-0080 for more information regarding the 5/16 to 3/8 flow control pinch valve.
The pinch valve is small but does what it should. For the price, it should be more substantial in weight. I've purchased others that are bigger and more sturdier for less so this has been replaced.
After a few small flood accidents with dual sided control valves with airline tubing falling off the stems even though they were zip tied, I had enough of these failure points! In came this new Pinch Valve that ELIMINATED the fail points of conventional control valves! A simple but VERY effective m...Read More
After a few small flood accidents with dual sided control valves with airline tubing falling off the stems even though they were zip tied, I had enough of these failure points! In came this new Pinch Valve that ELIMINATED the fail points of conventional control valves! A simple but VERY effective means to prevent ANY type of accidents with airline tubing falling off. Indeed derived from the medical industry, it's worth it's price in gold for the aquarium community. The ONLY improvement I would suggest is finer drip control. The turn knob is a bit course. Either way, get this product. Hope this helps.Hide
This came with my Korallin calcium reactor. It's a cool little gadget, but pretty pricey for what essentially amounts to a plastic screw. Like another reviewer here I also had trouble with sediment build up on the inside of the tubing which eventually obstructed the flow. Still, it does exactly what...Read More
This came with my Korallin calcium reactor. It's a cool little gadget, but pretty pricey for what essentially amounts to a plastic screw. Like another reviewer here I also had trouble with sediment build up on the inside of the tubing which eventually obstructed the flow. Still, it does exactly what it's supposed to do.Hide
I was using the micro ball valve that came on my GEO 612 Ca reactor. The flow was very inconsistent. The flow would always stop up. So, I had to run it full open to prevent it from stopping. That sent my dKh through the roof. I found this by doing an internet search. I've been using it for abo...Read More
I was using the micro ball valve that came on my GEO 612 Ca reactor. The flow was very inconsistent. The flow would always stop up. So, I had to run it full open to prevent it from stopping. That sent my dKh through the roof. I found this by doing an internet search. I've been using it for about 5 days now. Wow!! The first night, I set the output flow I wanted, and it is still there. Great product. The only problems I see are the price of the product (over $13 for a tiny valve) and the shipping ($7 because it was shipped in a box that could probably hold a couple hundred of these).Hide
Purchased this valve to be used on a kalk top-off line and the precision with which you can simply dial in the drip rate is outstanding! I may mention that the drip rate is not being set to try to match evaporation rate, only the rate at which kalk is introduced into the sump. On the surface it se...Read More
Purchased this valve to be used on a kalk top-off line and the precision with which you can simply dial in the drip rate is outstanding! I may mention that the drip rate is not being set to try to match evaporation rate, only the rate at which kalk is introduced into the sump. On the surface it seems a little pricey for its size, but the headaches eliminated with this valve easily justify its price. Definitely recommend.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
