This popular desiccant cap has a dual diameter nosepiece to fit both 1.25" and 2" focusers.
Red anodised screw cap and black-anodised cup. Made entirely from CNC-machined aluminium (no plastic!).
Designed and manufactured in the UK.
A sachet or two is placed in the cup then the lid screwed on. A captive O-ring ensures the cap fits snugly into 2-inch focusers and the lid is air-tight. The desiccant draws moisture from inside the telescope tube through the cap's breathing holes. Used regularly the cap will prevent moisture harming the telescope optics.
The desiccant starts yellow then turns green when it can no longer absorb moisture. The desiccant sachets can be dried on a radiator then reused several times. Replacement sachets are available.
| Average Rating (8 Reviews): | |
ASTRO ESSENTIALS DUAL FIT DESSICANT CAP Friday, 5 March 2021 | Brian
SEEMS TROUBLE FREE, JUST POP IT INTO THE EYEPIECE HOLDER. NO INSTRUCTIONS ,SO NOT SURE WHETHER HOW MANY BAGS TO USE OR SHOULD IT BE USED LOOSE ( DOES THE MOISTURE EXTRACT THROUGH THE PLASTIC? )
Thursday, 30 April 2020 | Jean-Jacques
J'apprécie ce produit pour sa qualité de construction qui est tout en métal . Cela doit bien fonctionner pour chasser l'humidité dans un tube fermé .
Il fallait y penser !
Monday, 8 July 2019 | Neil
Your scope needs this . Look after the insides of your scope so the moisture doesn’t ruin the lens coatings etc. A must have for taking care of your optics .
FLO Dual-Fit Desiccant Cap Red Wednesday, 12 June 2019 | Khalefa
Nicely made and it works as expected.
Recommended.
Friday, 1 March 2019 | Kirk
Nice design and well machined. Fits eyepiece nicely and keeps the scope dry as I store in the garage.
Keeps your SCT dry inside Sunday, 29 April 2018 | Alan
If you store your SCT outside or in the garage then these great caps keep all the moisture off your mirrors. When you finish on a cold night all the dampness is absorbed and you need not worry. Highly recommended!
Friday, 27 April 2018 | Simon
I use this to help keep the optics of my ED80 dry when the scope isn't being used, for periods of time.
I like the quality of this cap, it is strong since being made of aluminium and it fits easily into both 1.25" and 2" focussers.
Colour changing desiccant sachets make it easy to know when they need changing, and can easily be dried out for use again in the future.
Overall, I am glad I purchased this item, something that isn't very expensive and can help 'take care' of your telescope.
Monday, 26 February 2018 | John
Very impressed with the quality of this item and although some might think not cheap, it is in my view a small price to pay and good value to protect the significant investment I have in my observatory housed OTA
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