

Doheny's Pro-Grade Replacement Filters
Doheny's PRB50-IN1 Pool & Spa Replacement Filters for Dynamic Series IV – DFM, DFML, Waterway 50 In-Line. Replaces Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390. OD: 5", Length: 13 5/16", Hole Opening: 2 1/8"
Doheny's Replacement Filters feature improved filter technology! Unlike cheaper Tri-Lobal filtration media, Doheny's replacement filters boast a single layered, 4 oz. Pont Bonded Filtration Fabric, which is the highest quality spun bonded polyester material available.
- Doheny's 4 oz. Point Bonded Filter Fabric does not fray or tear and is resistant to Chlorine and Bromine degradation.
- Doheny's Point Bonded fiber shape is more efficient, delivering 20-40% greater effective surface area.
- Doheny's Point Bonded filters will also help catch smaller particles which increases filtration efficiency without water pressure drop - meaning less filter cleaning!
- Doheny's Value Promise. We know you work hard and want to make every penny count. That's our highest value promise - NO GAMES, JUST THE HIGHEST VALUE ANYWHERE, EVERY DAY!


NSF / ANSI 50 / ISO 9001 Certified Filters
WE TAKE YOUR FAMILIES HEALTH & SAFETY AS SERIOUSLY AS WE DO OUR OWN.
Doheny's Pro-Grade Replacement Filters are manufactured according to ISO9001 Certified Quality Management Systems and implemented into the Environmental Management System accorded to ISO1400! ALL filters are manufactured in high-tech, clean and sterile environments.


Advanced Performance Filter Technology
STATE OF THE ART FILTER MEDIA TECHNOLOGY.
Unlike cheaper Tri-Lobal filtration media, Doheny's replacement filters boast a single layered, 4-oz. Point Bonded Filtration Fabric, which is the highest quality spun bonded polyester material available.


High-Strength ABS Injection Molded Center Core
ALL DOHENY'S FILTERS FEATURE AN UPGRADED HIGH-STRENGTH ABS INJECTION MOLDED CENTER CORE.
These rugged center filter cores increase their pressure bearing capacity which helps ensure safety, strength and efficient water flow.


Ultra-Rugged Mesh Reinforced End Caps
ALL DOHENY'S FILTERS INCORPORATE A HIGH TENSILE STRENGTH SCREEN MESH INTO THE END CAPS.
These heavy-duty screen mesh discs add a ton of strength and structural integrity to the end caps. FIlter Bands are strategically placed to ensure the entire filtration area is efficiently used.
Doheny's PRB50-IN1 Filter Specifications
| Model | PRB50-IN1 |
| Filtration Area | 50 Sq. Ft. |
| Length | 13 5/16" |
| Outside Diameter | 5" |
| Top & Bottom Opening | 2 1/8" |
| Compatible With | Pleatco PRB505-IN / Unicel C-4950 / Filbur FC-2390 |
| Filter Core | Upgraded OEM High-Strength ABS Injection Molded |