Formula 420 Cleaning Caps (2-Pack)
Cleaning The Formula 420 Cleaning Caps (2-Pack) are listed as a two-piece set in the manufacturer's accessory range. The Insomnia offer includes one small and one large cap.
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Package Contents
The comparison covers the two-cap set. The Cleaning Plugs also offered by Formula 420 are a separate product. Their size specifications cannot be transferred to the caps.
Check the Fit
Before cleaning, the cap must fit the opening of the glass piece. The verified manufacturer list does not state any connection sizes for the Cleaning Caps; a universal fit is therefore not guaranteed.
Source: Formula 420 – Manufacturer Information, verified on 2026-10-08.
FAQ
How many caps does the set contain?
Two. Insomnia describes one small and one large cap.
Are Cleaning Plugs the same product?
No. Formula 420 lists caps and plugs separately.
