Home > Door Seals > Automatic Door Bottoms > Mortised > Pemko #434 Automatic Door Bottom, Mortised, Heavy Duty, with Choice of Seals - .75" Drop

Pemko #434 Automatic Door Bottom, Mortised, Heavy Duty, with Choice of Seals - .75" Drop

Pemko #434 Automatic Door Bottom, Mortised, Heavy Duty, with Choice of Seals - .75" Drop
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These heavy duty automatic door bottoms require low closing force to actuate a drop down bar which lowers when the door is closed to prevent air, light, sound, fire, smoke, dust and moisture from coming through the gap under doors. Available with a PemkoPrene™ or EPDM seal.

CUSTOM CUT TO SIZE

How to Order: Selecting Seal Material and Size required will determine your total price. To determine size needed, see How to Measure for an Automatic Door Bottom

Market price: $89.00
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Price: $75.65
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SKU P434APKL|36
Options EPDM or PemkoPrene™ Seal
Shipping See Shipping Tab Below
Description

These heavy duty automatic door bottoms create a strong seal, preventing fire, smoke, sound, drafts, dust, light and moisture from penetrating the gap under doors. It is available in various lengths and seals.

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 frame 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 seal drops to fill gaps up to 3/4". The mechanism 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 (See Application Tab). Door hang-up will not occur!

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 Sponge Neoprene, though it is more Eco-Friendly and delivers an overall better performance. Specifically, it has great sound control properties and is resistant to solvents. 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 options remain effective in a wide range of temperatures and can be used on external doors. For more details and information, see Understanding Rubber Seals.

Installation: This automatic door bottom is fully mortised, and will not be seen on the face of the door, making it ideal for high end, luxurious doors. It is non-handed (reversible) and can be applied to both wood or metal doors. Size of casing differs depending on the length, please review product specs. Door bottom can be trimmed up to 2".

  • Fire, Smoke, Sound and Air Infiltration rated
  • Aluminum Mill Casing
  • EPDM or PemkoPrene™ seal
  • Fills gaps up to 3/4"
  • Fully mortised - Compatible with 1-3/4" Doors
  • Can be used with doorway threshold or directly on floor surface

Installation instructions, end plates and installation screws provided. Screws are colored to coordinate with casing.

To determine size needed, see How to Measure for an Automatic Door Bottom.

How to Order: Selecting Seal Material and Size required will determine your total price.

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.

This product is available in a Nylon Brush Version.

Product Data

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Each flange has a width of 3/8" (.375").
Total Width is 1-19/32" (1.59")

 

                                                                       24" - 48" Length:

 

                                                         48.25" - 72" Length:

Compliance Details
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.
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Reviews
Product reviews are only available to verified buyers of this product. To leave a review, please refer to the product review email we sent you.
pros
  • Easy To Use (1)
  • Good Design (1)
  • Quality Materials (1)
cons
best uses

Reviewed by 1 customers

Displaying reviews 1-1

By Dan

from Orlando, Florida

About Me Avid Do-It-Yourselfer

Verified buyer
5.0
Threshold Seal
03/29/18
pros
  • Easy To Use
  • Good Design
  • Quality Materials
cons
best uses
Comments about Pemko #434 Automatic Door Bottom, Mortised, Heavy Duty, with Choice of Seals - .75" Drop:
Works as indicated. Only issue is it drops down and catches the edge of my threshold. This is not against the function of the device but more my issue with the threshold being higher than the floor so the seal catches the edge when closing.
Bottom Line Yes, I would recommend this to a friend
Displaying reviews 1-1
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