Zero 321AA 36

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Zero 321AA 36" Sill Protection Automatic Door Bottom with Neoprene Insert - Surface Mounted - Clear Anodized Aluminum

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Zero 321AA 36" Sill Protection Automatic Door Bottom with Neoprene Insert  - Surface Mounted - Clear Anodized Aluminum
Main ImageVideo Review Zero 321AA Clear Anodized Automatic Door Bottom with Solid Neoprene
More from Zero International
Price: $81.46 USD
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In Stock (No Minimums):
3 - Right Hand
3 - Left Hand
For quantities beyond the "In Stock" above, the item(s) ships in 25 business days for any quantity beyond the above listed "in stock ready for shipment" quantity.

1-844-809-3667

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Technical Support
Product Description:
Zero 321AA 36" Sill Protection Automatic Door Bottom with Neoprene Insert - Surface Mounted - Clear Anodized Aluminum

    • Sill Protection Automatic Door Bottom
    • Mount: Surface Mounted
    • Regular Duty
    • Insert: Neoprene
    • Finish: Clear Anodized Aluminum
    • Specify handing
    • Maximum effective drop: 1"
    • Supplied with #321 End Caps
    • Rated for 5 million cycles
    • ZERO’s patented automatic door bottom technology ensures a tight seal against the floor or saddle. As the door is closed, an adjustable "plunger" is compressed against the door frame, activating a concealed flat spring mechanism. This mechanism drops the seal smoothly from the housing in a scissor-like motion as illustrated below. The door seal compresses tightly even on uneven surfaces and retracts automatically when the door is opened.
    • All ZERO automatic door bottoms function the same way. The concealed spring mechanism causes the insert seal to activate on the hinge side first. It prevents the seal from dragging along the floor or threshold while the door is being closed to avoid door hang-up or closing delay.
Dimensions
Questions and Answers
Q: Are replacement gaskets available for the Zero 321AA automatic door bottom? I purchased this model door bottom from you in 2013 (order # 35649), and the neoprene has become stiff and no longer seals well.
A: Indeed yes. The replacement seal material for the Zero 321AA is the Zero 320N and can be reviewed here:

Click Here

Is there a follow up question that we can perhaps attempt to answer? We take deep pride in our technical expertise, as we know it separates us from our competition, so don't hesitate to ask.

Please reply to this email or contact our sales department here:

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if we can assist you by answering further questions or with entering this order and please let us know if there is anything else we can help with.

Q: I need 12 door bottoms 38 7/8 wide. Do you sell custom sizes or can they be cut to fit?
A: We most certainly do sell custom sizes and by all means you will want to order the next longest piece or pieces and simply indicate in the comment field the net length that you want us to ship the material out at because you don't want to have to cut the material in the field, allow us to prep the material prior to a shipping so that you get it exactly the correct length that you need saving you significant installation time and of course the potential for cutting something wrong or damaging the unit during the process of trimming it down. We are more than happy to contact you directly to enter this order.
Q: Good Day, I am looking for some technical advice on a door seal we recently purchased from you. Below is a generic style of warehouse door we have. We are looking for the right side door seal. I ordered the right hand 321AA item, and we received the pictures I have attached. We do need the right side door seal, but I wanted to confirm we are getting the right thing, and not ordering the wrong one again, it seems the item we have will fit the left door. If you could please shed some light on which seal I would need that would be very helpful. Photos are here:

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Thank you Glenn

A: Simply stated the item that you ordered in a Right Hand, which would be for the door shown in the closed position in your graphic, and I can confirm that the item that you received is a Left Hand, which would be appropriate for the door shown in the open position in your graphic. That is an error and will become a teachable moment for us here in the inventory department. If you eventually need to order a unit for the door from your graphic that is shown in the closed position be sure to order a right hand.

The good news however is that the item is reversible. The 321 can be reversed by removing the small Phillips machine screw from the back of the unit. You then pull out the entire insert and reinstall from the opposite side. The small machine screw has to be reinstalled.

Q: Good Day, I am looking for some technical advice on a door seal we recently purchased from you. Below is a generic style of warehouse door we have as seen here:

View Image

We are looking for the right side door seal. I ordered the right hand 321AA item, and we received the pictures I have attached as seen here:

View Image

View Image

We do need the right side door seal, but I wanted to confirm we are getting the right thing, and not ordering the wrong one again, it seems the item we have will fit the left door. If you could please shed some light on which seal I would need that would be very helpful. Thank you Glenn

A: You ordered a Right Hand and your photos clearly show a Left hand was received. The 321 can be reversed by removing the small Phillips machine screw from the back of the unit. You then pull out the entire insert and reinstall from the opposite side. The small machine screw has to be reinstalled.
(Required, used to email you once question is answered.)
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