Delta double valve
"Easy to use, quick installation."
This easy-to-install double-tap valve features compression fittings for fast and secure installation. Once installed, it allows refined flow adjustments to be made on canister filters and powerhead pumps. The quick-release allows for convenient disconnection with minimal to no spillage. Engineered and designed from durable and lightweight ABS plastic, this valve connect is resistant to accidental impact, acidic and alkaline water. Available in two common sizes and does not require tools for installation.
Double Valve Highlights:
- Recommended for use with the UNS Delta aquarium filter series, but it compatible with all standard canister filters.
- Suitable for use on freshwater planted tanks and saltwater reef tanks.
- Adjust water flow and speed with ease depending on your setup's needs.
- Multiple sizes available to fit various hose tubing sizes.
- Easy installation and quick disconnect for easy filter and lily pipe maintenance.
Model Specifications
| Model |
Number of Connects | Usage | Canister Filter Recommendations |
|---|---|---|---|
| 1/2" [12mm] | Single | Decrease flow only | UNS Delta 30 UNS Delta 60 UNS Delta 90 |
| 1/2" [12mm] | 2 Pack | Decrease flow + hassle-free disconnection of filter tubing during maintenance | UNS Delta 30 UNS Delta 60 UNS Delta 90 |
| 5/8" [16mm] | Single | Decrease flow only | UNS Delta 120 |
| 5/8" [16mm] | 2 Pack | Decrease flow + hassle-free disconnection of filter tubing during maintenance | UNS Delta 120 |
| 1/2" TO 5/8" [UP/DOWNSIZE] | Single | Decrease flow only | UNS Delta 120 |
| 1/2" TO 5/8" [UP/DOWNSIZE] | 2 Pack | Decrease flow + hassle-free disconnection of filter tubing during maintenance | UNS Delta 120 |
| 1/2" [12mm] AND 5/8" [16mm] | 2 Pack | Decrease flow + hassle-free disconnection of filter tubing during maintenance | Filters with mismatched tubing sizes such as Eheim 2217 |

Ultum Nature Systems creates premium aquarium products designed by hobbyists, for hobbyists. Known for thoughtful design that first appeared in their line of rimless aquariums, they continue to move ground in the industry, with the health of your aquarium always at the forefront. Since the release, the brand has expanded into a variety of aquarium needs and everyday essentials that fuse form and function.
From best-selling substrates like Controsoil and Controsand to powerful filtration systems and nutrient-packed aquatic plant fertilizers for aquascapes at every stage, you're sure to find something you didn't know you needed. Jump further in and browse CO2 gear, various natural hardscape choices, then pick up some live aquatic plants and the tools you need to plant, maintain, and keep your tank looking its best. With a recent venture into the world of marine, UNS supports today's aquarium hobbyists every step of the way.
Inspired by nature and powered by the art of aquascaping, plan your next aquarium project with Ultum Nature Systems today.
Shop all UNSOverall rating: 4.909091 / 5 from 44 reviews.
Review topics: [installation, quality, looks, valves, maintenance, flow, cleaning, pipes, leaks].
"Easy to use, quick installation."
"These "quick connects" make tubing and lily-pipe maintenance a breeze! Just swing the shut-off levers to the side, unscrew the knurled central fitting and voila! The lily pipes are detached from the filter and ready for cleaning. Installing the connectors is as easy as cutting the tubing, slipping the tubing onto the connector and twisting the plastic nut outward to clamp the tubing firmly in place."
"I really like the valve as they are working great in my 22 gal tank."
"Makes maintenance way easier and no mess. Also can control the flow with the valves. Great product to add into your setup, and was easy to install. UNS products are top quality."
"It’s the first time using this item and i love it"
"Excelente"
"easy to install, makes filter cleaning very easy. i have been very happy with this product."
"takes the wet mess out of maintenance and controlling the flow simple"
"UNS quality. A+"
"In case you didn’t know, as I didn’t, you’ll need a check valve on the tubing as close as you can get it to the diffuser. Even if there’s one on your reactor. Way easier for water to enter the tubing in this setup than with an in tank ceramic diffuser. Maybe this is common sense which is why I couldn’t find the answer online"
Shipping
Orders are typically processed within 1-2 business days M-F. However, additional time may be required during peak seasons and federal holidays. For orders containing live plants, we exercise extra caution and assess factors such as travel distance and weather to ensure safe transit.
To avoid delays, please ensure all order information is accurate and complete. We cannot offer refunds and are not responsible for orders shipped to incorrect addresses due to errors in provided information. Once an order has been shipped, delivery times are determined by the carrier and are outside of our control. On average, shipments arrive within 2–5 business days, excluding weekends and holidays. For more information, please visit our FAQ page.
Returns
If you are not satisfied with your purchase, please contact us within 48 hours of delivery. Approved returns must be shipped back within 14 days of approval. Returned items must be unused, unopened, and in their original packaging. Specific return requirements, if applicable, will be listed on the product’s page. For more information, please visit our FAQ page.
Refunds
No worries, we’ll take care of everything as long as it fits the guidelines above.Most answers to general questions can be found on our FAQ page.