Based on this product's specifications, here are some alternatives and similar models
Trimmer Head AWTools EASY LOAD M10x1.25 — replacement nylon line head
Summary description:
AWTools EASY LOAD trimmer head with M10x1.25 thread is a replacement nylon-line cutting head compatible with brushcutters and trimmers that accept M10x1.25 fittings. Designed for easy line loading, it serves to restore cutting capability for edging, grass trimming and light brush clearing. Supplied as a single head identified by manufacturer code AW70098.