I believe these were them:
https://www.amazon.ca/gp/aw/d/B07DLX2DCH?psc=1&ref=ppx_pop_mob_b_asin_title
I actually compared them and the gap that ball sits in them were bigger compared to the stock torpedo ones, allowing it to sit on nicely.
Any update to this. Looking to do the same thing but can't find anything specific for this size/shape/unit.
@mrpiggy If you're just looking to replace yours, you might be able to order a OEM replacement here: NSBK1TSS6 Insignia Replacement Parts - Encompass Or if I find a stainless steel one...