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Pemko #4301 Automatic Door Bottom, Aluminum Casing with Rubber Seals, .75" Drop

Pemko #4301 Automatic Door Bottom, Aluminum Casing with Rubber Seals, .75" Drop
Product Specs for Pemko 4301 Automatic Door Bottom Pemko 4301 Clear Anodized Automatic Door Bottom with PemkoPrene Seal Pemko 4301 Clear Anodized Automatic Door Bottom with EPDM Seal Pemko 4301 Automatic Door Bottom with PemkoPrene Seal Pemko 4301 Automatic Door Bottom with PemkoPrene Seal Pemko 4301 Automatic Door Bottom with EPDM Seal Pemko 4301 automatic door bottom semi-mortised applied onto interior wooden door with epdm seal opened Pemko 4301 automatic door bottom semi-mortised applied onto interior wooden door with epdm seal closed pemko 4301 dark bronze automatic door bottom with pemkoprene seal pemko 4301 dark bronze automatic door bottom with epdm rubber seal pemko 4301 dark bronze automatic door bottom surface mounted to the face of a wooden interior door with seal open pemko 4301 dark bronze automatic door bottom surface mounted to the face of a wooden interior door with seal closed

This heavy duty automatic door bottom has a drop-down seal which is lowered when the door is closed to prevent air, light, sound, fire, smoke, dust and moisture from infiltrating the gap under doors. Designed to be surface mounted or semi-mortised applied to the face of the door. Available in a choice of two anodized finishes and choice of PemkoPrene™ or EPDM rubber seal.

PRICED PER RANGE

How to Order: Selecting Finish, Seal Material and Exact Size will calculate your total price.

Market price: $97.00
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Price: $82.45
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Made in USA
SKU P4301CPKL|36
Options PemkoPrene or EPDM Seal; Surface or Semi-Mortise Mount
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Description

Dimensions:

Finishes: Available in clear anodized and dark brozne anodized aluminum.

Seal: Fitted with either a PemkoPrene or EPDM seal. The seal drops to fill gaps up to .75".

EPDM vs. PemkoPrene: When choosing a seal it is essential to determine the purpose for sealing and the floor surface beneath the seal. EPDM is comparable to Neoprene, though it is more Eco Friendly and has better performance in many areas. Specifically, it has great sound control properties and is solvent resistant. PemkoPrene has a multi-point compression design which works great on uneven surfaces such as a tiled floor or carpet. PemkoPrene is not a firm seal which allows for more leniencies. Both types of seals remain effective in a wide range of temperatures and can be used on external doors.

Installation: Installation instructionsend caps, and screws provided. This automatic door bottom can be surface mounted or semi-mortised applied to the face of the door. Select from drop-down menu above which mounting option will be applied, since the two mounting options require different sized screws.

Handing: Casing is reversible and is compatible with both a right and left handed door.

Seal Replacement: Seals are manufactured to last through many usages, however if required, a replacement seal can be purchased, which eliminates the need to replace the whole door bottom. See our Pemko Automatic Door Bottom Replacement Seal.

Please note, images are for illustrative purposes only. They are not actual photos. Therefore, actual colors may vary slightly and size may be enlarged to show detail. See product specs for exact measurements.

This product has a 5 year guarantee against defects in material and workmanship.
Click here to view our full Warranty Policy.

To view another variation of this door bottom see our Automatic Door Bottom with Nylon Brush Seal.

Product Data

How It Works 

The high quality automatic mechanism consists of an aluminum case which surrounds a moveable drop-bar seal. The drop-bar seal is actuated by a plunger which contacts the door jamb as the door is closing, forcing the drop-bar seal down against the floor / threshold. The plunger requires low "Feather Touch" closing force to actuate the drop-bar seal. The plunger causes the seal to always actuate on the hinge side first, which prevents the seal from skidding along the floor/threshold while the door is being closed. Door hang-up will not occur!

See also About Automatic Door Bottoms.

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24" - 48" Length:

Product specs for pemko 4301 automatic door bottom

48.25" - 72" Length:

Product specs for pemko OS4301 automatic door bottom     product specs for pemko OS4301 door bottom with EPDM seal

Installation

Click here for a Printable Copy of How to Install an Automatic Door Bottom.

Automatic Door Bottoms are available with three mounting options: Surface Mounted, Semi-Mortised and Fully Mortised. A surface mounted application can be applied without removing the door from its hinges. For a semi-mortised, if the rabbet in the door is cut-out already, the door does not need to be removed. For a fully mortised application the door should be removed before starting. 

STEP 1: SIZING YOUR DOOR BOTTOM

Once your door is ready for installation you need to determine the size required for your door bottom:

  • For a Surface Mounted Application: Measure the distance between the two stop moldings, or if a perimeter door gasket is applied, measure the distance between the two installed gaskets, then minus 1/8-1/4"” (.125”) from the total distance. That is the size needed for your door bottom.

  • For a Semi-Mortised and Fully Mortised Application: Measure your door from side to side; that is the measurement needed for your automatic door bottom.

For visual presentation see How to Measure for an Automatic Door Bottom.

How to Install an Automatic Door Bottom- Figure 1

Once you have determined the size needed, if necessary, trim your door bottom. Use a chop saw or table saw to create a perfectly straight cut.

Note, Only trim opposite the actuating plunger, brass nut. (Trimming from the brass nut side will ruin your ADB).

 

How to Install an Automatic Door Bottom- Figure 1You can trim from the edge up to one inch of the screw in the side wall of the ADB.

 

STEP 2: PREP FOR ATTACHING AUTOMATIC DOOR BOTTOM

How to Install an Automatic Door Bottom- Figure 3Surface Mounted and Semi-Mortised models need to be applied to the push side of the door only (the side with the door stops). The actuating plunger needs to be applied to the hinge side of the door for all applications.

Place the automatic door bottom against the door

Once you have the automatic door bottom leveled and positioned correctly, with a pencil or marker mark where the attachment screws need to be drilled.

STEP 3: ATTACHING THE AUTOMATIC DOOR BOTTOM

How to Install an Automatic Door Bottom- Figure 4

To make installation easier you can drill a pilot hole which will ensure you attach the door bottom to the correctly marked spot. With the screws provided, screw in the automatic door bottom.

In some models, a plate is provided for the hinge side of the frame. This will protect the door frame from getting worn down by the actuating plunger. If provided, attach to corresponding point on the frame.

 

STEP 4: TESTING YOUR AUTOMATIC DOOR BOTTOM

How to Install an Automatic Door Bottom- Figure 5Now that the door bottom is attached, test the door bottom by opening and closing the door to ensure there is a full seal. If the seal does not come down far enough twist the brass nut out, if it seals too tight twist the brass nut in.

Once you have followed through with all the instructions your Automatic Door Bottom is good to go! Enjoy years of quality sound, draft and light infiltration control with your new door bottom.

 

 

Compliance Details

Click to View Ratings Explained

compliance details for pemko automatic door bottom

Finishes Comply with the Following ANSI / BHMA Codes:

 

  • Clear Anodized Aluminum - US28 / 628
  • Dark Bronze Anodized Aluminum - US10B / 710

 

Shipping / Returns
  • Ship Time:
    • This product is custom made to your specifications, please allow 10-14 Business Day to ship.
    • Ships via major carriers, such as UPS or FedEx Ground, with tracking information provided.
       
  • Domestic Shipping Fees- (Hawaii and Alaska not Included):
    • FREE SHIPPING on orders over $200.00 (excludes oversized and freight orders).
    • There will be a flat $19.99 shipping and handling fee on orders under $200.00.
    • Oversized Items: Items 86" and above have an oversize surcharge of $70.00
    • Freight Orders: Items 95" and above require freight shipment and have a shipping charge of $150.00
    • Orders totals above $1,500.00 will ship free, regardless of size.
       
  • Alaska and Hawaii, Canada, and International Shipping:
  • Returns:
    • This product is custom made and is not returnable.
    • We are commited to your satisfaction, as a courtesy, we may, at our discretion accept returns with a minimum 25% restock fee.
    • Weatherstripping products will not be considered for returns.
    • Item must be in new, resaleable condition.
    • Please call or email us to receive an RMA number before returning. No returns will be processed without an RMA number.
    • Return shipping is customer's responsibility. A return address will be provided with RMA#.
    • If you are shipping via USPS (not recommended) do NOT require signature as we will not be able to pick up your package from local post office facility.
Reviews
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By Bob

from Atlanta

Verified buyer
5.0
Well treated
03/11/17
pros
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best uses
Comments about Pemko #4301 Automatic Door Bottom, Aluminum Casing with Rubber Seals, .75" Drop:
It's one received had a problem. They replaced it no questions asked.
Bottom Line Yes, I would recommend this to a friend
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