We are closed from Monday, Dec 23rd and will reopen on Monday, Jan 6th. Any orders received during this time will be processed in the New Year.
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Get it by Tuesday, Dec 31
£19.99 Flat Shipping + VAT £19.99 flat shipping is applicable on orders with an aggregate weight less than 10kg. Orders exceeding 10kg will be charged default shipping rates
Payment Methods
Delivery Partners
Step 1 Add the items into your cart or submit a Purchase order
Step 2 Checkout, select NET30 payment (provide company registration and VAT number)
Step 3 Delivery via TNT or Royal Mail and receive invoice for payment in 30-days
Step 4 Make payment via BACS to our factoring partner,
| Air Flow Direction | Horizontal |
| Application | Barometric Draft Control |
| Blade Material | Stainless Steel |
| Blade Seal Material | Stainless Steel |
| Blade Type | Flat Blade |
| Color | Silver |
| Connection Type | Press Fit |
| Counterbalanced | Yes |
| For Duct Shape | Round |
| For Fuel Type | Natural Gas |
| For Nominal Duct Diameter | 3", 4" |
| Frame Less Flange | 12.6 sq. in. |
| Frame Material | Steel |
| Frame Material Thickness | 24 ga. |
| Includes | Collar |
| Mfr. Series | Mg1 |
| Mounting Style | Surface Mount |
| Overall Dia. | 4" |
| Overall Height | 4 5/8" |
| Overall Length | 7" |
| Overall Width | 4 5/8" |
| Rough Opening Dia. | 4" |
| Rough Opening Length | 2 1/2" |
| Single Acting/double Acting | Double Acting |
| Ship weight (kg) | 0.53 |
| Ship height (cm) | 11.75 |
| Ship length (cm) | 17.78 |
| Ship width (cm) | 11.75 |
| Country of Origin | US |
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
Trade pricing is available for 
Order Value should be £500+