Dranjer FN2 Floor Drain Seal for Radon (New Construction)
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Dranjer FN2 Floor Drain Seal for Radon (New Construction) is backordered and will ship as soon as it is back in stock.
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping anywhere in Canada: $29.99 per order for most products, $15 for radon test kits. Heavy freight items show their own rate under the price. All orders ship from within Canada, so there are no customs delays or cross-border fees. Full shipping details
Returns & Warranty
Returns & Warranty
Items may be returned within 30 days of receipt in original, unused condition. RadonAway Pro Series fans carry a 5-year manufacturer warranty. Contact us for warranty claims.
Dranjer FN2 Floor Drain Seal for Radon (New Construction)
Description
Description
Dranjer FN2 Floor Drain Seal for New Construction
A complete floor drain to set in new concrete. Water drains through, and radon stays out.
Pouring a new basement floor is the best time to get the floor drain right. The FN2 comes as a full drain: the housing, an anchor flange that sets into the concrete, the seal assembly and a strainer plate. Set it in the pour and the drain never becomes a way in for radon and soil gas.
It's designed for homes with an active sub-slab depressurization (radon fan) system, or one that's planned. Dranjer, a Canadian company in Winnipeg, engineers and tests its drain seals in the lab and in the field.
How it works
Inside the drain, a sealing ring sits closed. When water comes in, the ring lifts and the water flows through. Once the water stops, the ring reseats and blocks radon, soil gas and odours from coming up the drain.
Installation
- Use PVC solvent cement to join the housing to the anchor flange and to the drain plumbing.
- Pour the concrete around the drain, level with the top of the anchor flange. The flange's reverse bevel keeps it from lifting out.
- Push the seal assembly into the anchor flange. A light coat of petroleum jelly on the flange seal helps it seal.
Specifications
| Part number | Dranjer FN2 |
| Fits | Standard 2 in (5.08 cm) pipe |
| Top diameter | 3.9 in (9.9 cm) |
| Exterior dimension | 2.75 in (6.99 cm) |
| Housing | 4 in (10.16 cm) |
| Seal assembly depth | 3.75 in (9.53 cm) below the floor |
| Includes | Housing, anchor flange, seal assembly, strainer plate |
| Not included | 2 in street fitting or pipe below (customer supplied) |
| Sold | Individually |
| Manufacturer | Dranjer Corporation, Winnipeg, Canada |
Common questions
Does it need any maintenance?
If the drain gets used regularly, lift the strainer plate now and then and rinse the seal assembly with clean water.
Can the FN2 go into a floor that's already poured?
Yes. Drill or chip a 3 in hole, set the assembly in and backfill with concrete bonding compound.
My basement already has a floor drain. Which one do I need?
The Dranjer FR2 retrofit is made for that. It fits under the strainer plate you already have.
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