Based on this product's specifications, here are some alternatives and similar models
Filter for Vespera telescope — Netgear Vaonis Dual Band Filter AC022
Summary description:
Dual Band Filter for Vespera by Netgear Vaonis (MPN AC022) is an optical accessory designed to attach to the Vespera imaging/telescope system. The filter provides dual-band spectral selection to improve contrast for specific wavelengths during astrophotography and visual observation. It is intended for use with the Vespera platform to reduce light pollution and enhance target visibility for deep-sky and planetary imaging.