I'll probably regret this, but I'm using mostly a reflector these days, so out they go.
These four 1.25" LRGB filters are rare and no longer sold or manufactured by Hutech/IDAS, and I've never seen them available before on Astromart. They were designed specifically for refractors by cutting off UV to completely eliminate blue haloes particularily with less expensive refractors that do not focus blue well, and I am not aware of any other set that is designed for refractors that works as well. Includes the clear IR blocking filter. $200 plus actual shipping. Paypal/Money Orders.