Community ? Purple Hills XL Carts 1.2g 510 cartridges are an affordable vape product for customers who want to find the perfect balance of price, convenience and quality in a bigger size! The Sour Grapes XL 510 Thread Cartridge provides easy, competitively-priced access to reliable, high-caliber production – support independent Canadian growers, take a pull of the perfect balance between the bold sour notes and the inherent sweetness of ripe grapes, and you’re good to go!