"Sash clip" part identification

A home owner from USA says:
December 4, 2013
I need to order these for 3 identical windows. Length of the spiral balance tubes is 27" diameter looks like 3/8". Looking at the photos you have on your website, my balance tubes closely resemble the 301 series. What do I need to order? Also, same windows have Keller window lock 90-028.

Thank you.
Ann
User submitted a photo of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
December 13, 2013
Thank you for posting, Ann. I recognize this part. You have an old, now defunct Keller single hung window. I recommend that you consider our S303-27 spiral balance as a possible replacement. I also recommend our 17-018 and 17-019, which appear to match the bottom sash clip featured in your picture. As for the top sash guide, check out our 18-002. Let me know what you think of these suggestions.
Keller Window Lock, 1-1/2"
Keller Window Lock, 1-1/2"
90-028
$2.32
RH Bottom Sash Clip, Keller
RH Bottom Sash Clip, Keller
17-018
$0.97
LH Bottom Sash Clip, Keller
LH Bottom Sash Clip, Keller
17-019
$0.97
Top Sash Guide, Keller
Top Sash Guide, Keller
18-002
$1.97
27" Keller Spiral Balance Assembly
27" Keller Spiral Balance Assembly
S303-27
$17.70
How to Identify a Replacement Spiral Balance
How to Identify a Replacement Spiral Balance
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How to replace the Keller Series 303 Window Balances
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How to choose the proper spiral balance tip color
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How to adjust a spiral balance on a non-tilt window
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