QCellDirect via Amazon has 2-Pack Tempered Glass Screen Protector for iPhone XR/iPhone Xs Max for $2.94. Shipping is free.
From the Product Page:
- Easy to Install – take only a few minutes to install with no bubble. Only four steps to perfectly protect your iPhone XS Max.
- Ultra-Thin & High HD Clarity – 0.3mm film offers 99% transparency to provide natural viewing experience and accurate touch screen response.
- Face ID is compatible and Anti-Fingerprint：This glass screen protector is designed for iPhone Xr/XS Max with anti-fingerprint coating and Face ID compatibility.
- Kit Includes – 2* Tempered Glass Screen Protector, wet/dry wipes, cleaning cloth, dust stickers.
2018 iPhone XR Screen Protector 2pack
Use code WLSF8V4G
2018 iPhone XS Max Screen Protector 2pack
Use code X8TZK89L